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1 |
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00:00:00,000 --> 00:00:01,260 |
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ู
ูุณููู |
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2 |
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00:00:19,490 --> 00:00:23,670 |
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ุจุณู
ุงููู ุงูุฑุญู
ู ุงูุฑุญูู
ูุนูุฏ ุงูุฃู ูุฅูู
ุงู ู
ุง ุงุจุชุฏูุงู |
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3 |
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00:00:23,670 --> 00:00:28,950 |
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ูู ุงูู
ุญุงุถุฑุฉ ุงูู
ุงุถูุฉ ููู section 5-7 ุงูุฐู ูุชุญุฏุซ ุนู |
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4 |
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00:00:28,950 --> 00:00:32,350 |
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ุงู undetermined coefficients ุงููู ูู ุทุฑููุฉ |
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5 |
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00:00:32,350 --> 00:00:38,110 |
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ุงูู
ุนุงู
ูุงุช ุงูู
ุฌูููุฉ ูุญู ุงูู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉุจูุญู ุจูุฐู |
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6 |
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00:00:38,110 --> 00:00:42,370 |
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ุงูุทุฑููุฉ ุฅุฐุง ุชุญูู ูู ุงูู
ุนุงุฏูุฉ ุฃู
ุฑุงู ุงูุฃู
ุฑ ุงูุฃูู |
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7 |
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00:00:42,370 --> 00:00:48,210 |
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ูุงูุช ุงูู
ุนุงู
ูุงุช ูููุง ุซูุงุจุช ููู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ ุงูุฃู
ุฑ |
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8 |
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00:00:48,210 --> 00:00:53,450 |
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ุงูุซุงูู ุดูู ุงู F of X ุชุจูู ุนูู ุดูู ู
ุนูู ู
ุง ูู ูุฐุง |
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9 |
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00:00:53,450 --> 00:00:57,810 |
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ุดูู ุฃุญุฏ ุซูุงุซุฉ ุฃู
ูุฑ ุงูุฃู
ุฑ ุงูุฃูู ุฃู ูููู polynomial |
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10 |
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00:00:57,810 --> 00:01:01,930 |
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ุงูุฃู
ุฑ ุงูุซุงูู polynomial ูู exponential ุงูุฃู
ุฑ |
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11 |
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00:01:01,930 --> 00:01:07,170 |
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ุงูุซุงูุซ polynomialูู exponential ูู sin x ุฃู cos x |
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12 |
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00:01:07,170 --> 00:01:12,390 |
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ุฃู ู
ุฌู
ูุนูู
ุง ุฃู ุงููุฑู ููู
ุง ุจูููู
ุง ูุนุทููุง ุนูู ุฐูู ูู |
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13 |
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00:01:12,390 --> 00:01:17,270 |
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ุงูู
ุฑุฉ ุงูู
ุงุถูุฉ ู
ุซุงููู ููุฐุง ูู ุงูู
ุซุงู ุฑูู
ุชูุงุชุฉ ูุจูู |
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14 |
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00:01:17,270 --> 00:01:21,270 |
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ุจุฏูุง ูุญู ุงูู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ ุงููู ุนูุฏูุง ูุฐู ุฐูุฑูุง |
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15 |
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00:01:21,270 --> 00:01:24,830 |
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ูู ุงูู
ุฑุฉ ุงูู
ุงุถูุฉ ุจูุฌุฒุฆูุง ุฅูู ุฌุฒุฆูู ุจูุงุฎุฏ ุงู |
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16 |
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00:01:24,830 --> 00:01:28,730 |
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homogeneous ูู
ู ุซู
ุงู non homogeneous differential |
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17 |
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00:01:28,730 --> 00:01:34,790 |
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equationูุจูู ุจุฏุงุฌู ุงูููู ุงูุชุฑุถ ุงู Y ุชุณุงูู E ุฃูุณ RX |
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18 |
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00:01:34,790 --> 00:01:45,450 |
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ุจูู solution of the homogeneous differential |
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19 |
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00:01:45,450 --> 00:01:51,890 |
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equation ุงููู ูู ุงูู
ุนุงุฏูุฉ ุงูุชุงููุฉ Y W Prime ุฒุงุฆุฏ Y |
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20 |
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00:01:51,890 --> 00:01:57,450 |
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ูุณุงูู Zero then the characteristic equation |
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21 |
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00:02:12,070 --> 00:02:18,010 |
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ุงูุญู ุงูู
ุชุฌุงูุณ ูุจูู |
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22 |
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00:02:22,280 --> 00:02:32,080 |
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The Homogeneous Differential Equation is ููุณุงูู |
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23 |
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00:02:32,080 --> 00:02:40,580 |
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ูุงุณุงูู ูุงุณุงูู |
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24 |
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00:02:40,580 --> 00:02:44,700 |
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ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู |
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25 |
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00:02:44,700 --> 00:02:45,880 |
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ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู |
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26 |
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00:02:45,880 --> 00:02:47,560 |
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ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู |
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27 |
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00:02:47,560 --> 00:02:47,560 |
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ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู |
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28 |
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00:02:47,560 --> 00:02:47,560 |
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ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู |
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29 |
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00:02:47,560 --> 00:02:47,620 |
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ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู |
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30 |
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00:02:47,620 --> 00:02:51,060 |
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ูุณุงูู ูุณุงูู |
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31 |
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00:02:51,060 --> 00:02:56,550 |
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ูุณุจุฏู ุฃุฑูุญ ุฃุฏูุฑ ุนูู particular solution ูุญู |
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32 |
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00:02:56,550 --> 00:03:01,730 |
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ุงูู
ุนุงุฏูุฉ ุงููู ูู non homogeneous ูุจุงุฌู ุจูููู the |
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33 |
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00:03:01,730 --> 00:03:07,970 |
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particular solution |
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34 |
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00:03:07,970 --> 00:03:17,010 |
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of theDifferential equation start ู ุจุฑูุญ ุงููู ููู |
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35 |
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00:03:17,010 --> 00:03:24,150 |
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ุงูุฃุณุงุณูุฉ ูุฐู ุจุณู
ููุง star S ู
ุฏููู ุงูุฑู
ุฒ YP ู ุจุฏู |
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36 |
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00:03:24,150 --> 00:03:31,510 |
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ุจููู ูุชุงูู X to the power S Vุจุฃุฌู ุนูู ุดูู ุงููู ูู |
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37 |
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00:03:31,510 --> 00:03:35,650 |
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ุงูุฏุงูุฉ ุงููู ุนูุฏูุง ูุฐู ุฑูู
ูู sign ูุนูู polynomial |
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38 |
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00:03:35,650 --> 00:03:39,790 |
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ู
ู ุงูุฏุฑุฌุฉ ุงูุตูุฑูุฉ ู
ุถุฑูุจุฉ ูู sign ุฅุฐุง ุจุฏู ุฃูุชุจ |
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39 |
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00:03:39,790 --> 00:03:43,630 |
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polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุตูุฑูุฉ ูู sign ุฒุงุฆุฏ |
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40 |
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00:03:43,630 --> 00:03:49,090 |
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polynomial ูู cosine ูุจูู ุจูุฏุฑ ุฃููู ูุฐู ุนุจุงุฑุฉ ุนู a |
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41 |
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00:03:49,090 --> 00:03:55,610 |
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ูู cosine ุงู x ุฒุงุฆุฏ b ูู sine ุงู x ุจุงูุดูู ุงููู |
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42 |
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00:03:55,610 --> 00:04:04,280 |
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ุนูุฏูุง ูุฐุงุนูุฏู
ุง ุฃุจุญุซ ุนู ููู
ุฉ S ูู ูู 0 ุงู 1 ุงู 2 ุงู |
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43 |
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00:04:04,280 --> 00:04:06,980 |
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3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู |
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44 |
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00:04:06,980 --> 00:04:10,500 |
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3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู |
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45 |
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00:04:10,500 --> 00:04:10,560 |
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3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู |
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46 |
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00:04:10,560 --> 00:04:10,600 |
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3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู |
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47 |
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00:04:10,600 --> 00:04:11,400 |
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3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู |
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48 |
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00:04:11,400 --> 00:04:11,720 |
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3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู |
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49 |
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00:04:11,720 --> 00:04:21,600 |
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3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู |
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50 |
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00:04:24,720 --> 00:04:28,780 |
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ุจูุงุญุฏ ูุดูู ูู ุญุทูุชูุง ุจูุงุญุฏ ุจูุธู ููู ุชุดุจู ููุง ุจูููู |
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51 |
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00:04:28,780 --> 00:04:34,980 |
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ุงูุชูู ูุฐุง ุงูุชุดุจู ุฅุฐุง ูู ุญุทูุช S ุจูุงุญุฏ ุจูุตูุฑ AX Cos |
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52 |
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00:04:34,980 --> 00:04:41,400 |
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ูููุง BX Sin ูู ูู ุฃู term ููุง ูุดุจู ุฃู term ููุง |
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53 |
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00:04:41,400 --> 00:04:48,920 |
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ุทุจุนุง ูุฃ ูุจูู ููุง hereููุง ุงู S ุชุณุงูู ูุงุญุฏ ูู
ุง ุญุท ุงู |
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54 |
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00:04:48,920 --> 00:04:53,740 |
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S ุชุณุงูู ูุงุญุฏ ุจูููู ุฃุฒููุง ุงูุดุจู ุงููู ู
ูุฌูุฏ ุชู
ุงู
ุง ู
ุง |
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55 |
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00:04:53,740 --> 00:04:56,880 |
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ุจูู ุงู complementary solution ู ุงู particular |
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56 |
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00:04:56,880 --> 00:05:02,600 |
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solution ูุจูู ุจูุงุก ุนููู ููุตุจุญ YP ุนูู ุงูุดูู ุงูุชุงูู |
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57 |
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00:05:02,600 --> 00:05:12,510 |
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AX ูู cosine X ุฒุงุฆุฏ BX ูู sine Xุงูุงู ุจุฏูุง ูุญุฏุฏ |
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58 |
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00:05:12,510 --> 00:05:19,010 |
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ููู
ุชูู ุซูุงุจุช ุงู A ู ุงู B ูุฐูู ุจุฏู ุงุดุชู ู
ุฑุฉ ู ุงุชููู |
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59 |
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00:05:19,010 --> 00:05:26,590 |
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ู ุงุนูุถ ูู ุงูู
ุนุงุฏูุฉ ุงูุฃุตููุฉ ูุจูู ุจุฏู ุงุฎุฏ Y P Prime |
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60 |
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00:05:26,930 --> 00:05:34,310 |
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ูุฐู ุงูู
ุดุชูุฉ ุญุตู ุถุฑุจ ุฏุงูุชูู ูุจูู a ูู cos x ูุงูุต ax |
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61 |
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00:05:34,310 --> 00:05:41,070 |
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ูู sin x ุฒุงุฆุฏ ูู
ุงู ูุฐู ุญุตู ุถุฑุจ ุฏุงูุชูู ูุจูู b ูู |
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62 |
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00:05:41,070 --> 00:05:50,100 |
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sin x ุฒุงุฆุฏ bx ูู cos xูุจูู ุงุดุชููุง ููู ู
ู X ู Cos X |
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63 |
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00:05:50,100 --> 00:05:56,040 |
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ู X ู Sin X ูุญุงุตู ุถุฑุจ ุฏูุชูู
ูุฐุง ุญุตููุง ุนูู Y' ุทุจุนุง |
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64 |
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00:05:56,040 --> 00:06:00,020 |
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ู
ุงููุด ู ูุง term ุฒู ุงูุชุงูู ูุจูู ุจูุฎูู ูู ุดู ุฒู ู
ุง |
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65 |
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00:06:00,020 --> 00:06:06,500 |
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ูู ุจุฏูุง ูุฑูุญ ูุฌูุจ YPW' ูุจูู ุจุฏูุง ุงุดุชู ูุฐู ุจุงูุณุงูุจ |
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66 |
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00:06:06,500 --> 00:06:16,830 |
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A Sin X ููุฐู ุงูุณุงูุจ A Sin Xุจุนุฏ ุฐูู ุงุชุณุงูุจ ax ูู |
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67 |
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00:06:16,830 --> 00:06:23,190 |
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cos x ุงุดุชูุช ูุฐู ุญุตู ุถุฑุจ ุฏูุชูู ุจูุงููุฌ ุงููู ุจุนุฏูุง |
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68 |
|
00:06:23,190 --> 00:06:29,610 |
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ูุจูู ุฒุงุฆุฏ b ูู cos x ุฎูุตูุง ู
ููุง ุจุฏุฃุช ุงุดุชู ูุฐู ุญุตู |
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69 |
|
00:06:29,610 --> 00:06:38,190 |
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ุถุฑุจ ุฏูุชูู ูุจูู ุฒุงุฆุฏ b ูู cos x ูุงูุต bx ูู sin x |
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70 |
|
00:06:38,620 --> 00:06:42,780 |
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ูุจูู ุงุดุชููุงู ุญุตู ุถุฑุจ ุฏูุชูู ููุง ูู ุจุนุถ ุงูุนูุงุตุฑ |
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71 |
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00:06:42,780 --> 00:06:50,640 |
|
ู
ุชุดุงุจูุฉ ูู ุนูุฏ ููุง ุณุงูุจ ุงุชููู a ูู sine ุงู X ูุนูุฏู |
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72 |
|
00:06:50,640 --> 00:06:56,880 |
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ูู
ุงู ุฒุงุฆุฏ ุงุชููู b ูู cosine ุงู X ูุฏูู ุงุชููู ู
ุน ุจุนุถ |
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73 |
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00:06:56,880 --> 00:07:03,720 |
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ู ูุฏูู ุงุชููู ู
ุน ุจุนุถ ุจุงูู ุนูุฏู ูุงูุต ax ูู cosine ุงู |
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74 |
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00:07:03,720 --> 00:07:10,180 |
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X ููุงูุต bx ูู sine ุงู Xุจุนุฏ ุฐูู ุงุฎุฐ ุงูู
ุนููู
ุงุช ุงููู |
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75 |
|
00:07:10,180 --> 00:07:15,040 |
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ุญุตูุช ุนูููุง ู ุงุนูุถ ูู ุงูู
ุนุงุฏูุฉ star ูุจูู ููุง |
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76 |
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00:07:15,040 --> 00:07:23,320 |
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substitute in |
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77 |
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00:07:23,320 --> 00:07:33,740 |
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the differential equation star we get ุจูุญุตู ุนูู ู
ุง |
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78 |
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00:07:33,740 --> 00:07:34,200 |
|
ูุฃุชู |
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79 |
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00:07:40,110 --> 00:07:43,630 |
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ูุฌุจ ุงู ุงุฒุงูุฉ ูู ุฏุงุจูู ุจุฑุงูู
ูุงุญุท ููู
ุชูุง ูู ุฏุงุจูู |
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80 |
|
00:07:43,630 --> 00:07:48,950 |
|
ุจุฑุงูู
ูู ุญุตููุง ุนูููุง ูุจูู ูุงูุต ุงุชููู ุงู ุตูู |
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81 |
|
00:07:48,950 --> 00:07:55,980 |
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ุงูุฒุงููุฉ ุซุชุง ุตูู ุงูุฒุงููุฉ Xุชู
ุงู
ุ ุงููู ุจุนุฏูุง ุฒุงุฆุฏ |
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82 |
|
00:07:55,980 --> 00:08:04,340 |
|
ุงุชููู B ูู cosine ุงู X ุงููู ุจุนุฏูุง ูุงูุต ุงู AX ูู |
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83 |
|
00:08:04,340 --> 00:08:11,080 |
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cosine ุงู X ูุงูุต ุงู BX ูู sine ุงู X ูุฐุง ููู ุงููู |
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84 |
|
00:08:11,080 --> 00:08:17,400 |
|
ุฃุฎุฏุชู ู
ููุ YW prime ุถุงูู ููุง ู
ููุ Y ููู Y ูุงููุงุ |
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85 |
|
00:08:17,400 --> 00:08:24,560 |
|
ุจุฏู ุฃุฌู
ุนูู
ูุฏูู ูุจูู ุฒุงุฆุฏูู ุงููู ูู ู
ูู ax ูู cos |
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86 |
|
00:08:24,560 --> 00:08:33,520 |
|
x ู ุจุนุฏ ูู ูุฏู ุฒุงุฆุฏ bx ูู sin x ููู ุจูุณูู ุงูุทุฑู |
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87 |
|
00:08:33,520 --> 00:08:40,300 |
|
ุงููู ูุชุจุน ุงูู
ุนุงุฏูุฉ ุงููู ูู 4 ูู sin xุจูุฌู ูุฌู
ุน ุนูุง |
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88 |
|
00:08:40,300 --> 00:08:47,940 |
|
ax cos ุจุงูุณุงูุจ ู ax cos ุจุงูู
ูุฌุจ ุนูุง bx sin ุจุงูุณุงูุจ |
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89 |
|
00:08:47,940 --> 00:08:53,220 |
|
ู bx ุจูู
ูู ุจุงูู
ูุฌุจ ูุจูู ุตูุฉ ุงูู
ุนุงุฏูุฉ ุนูู ุงูุดูู |
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90 |
|
00:08:53,220 --> 00:09:00,740 |
|
ุงูุชุงูู ูุงูุต ุงุชููู a sin x ุฒุงุฆุฏู ุงุชููู b cos x ููู |
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91 |
|
00:09:00,740 --> 00:09:07,540 |
|
ุจุฏู ูุณูู ุงุฑุจุน sin xุจุนุฏ ุฐูู ููุฑุฑ ุงูู
ุนุงู
ูุงุช ูู |
|
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92 |
|
00:09:07,540 --> 00:09:13,340 |
|
ุงูุทุฑููู ุฅุฐุง ูู ูุฑุฑูุง ุงูู
ุนุงู
ูุงุช ูู ุงูุทุฑููู ุจุณูุง ููุต |
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93 |
|
00:09:13,340 --> 00:09:19,580 |
|
ุงุชููู a ุจุฏู ุณุงูู ูุฏุงุด ุงุฑุจุนุฉ ูุนูุฏู ุงุชููู b ุจุฏู ุนูุฏู |
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94 |
|
00:09:19,580 --> 00:09:26,520 |
|
cosine ููุง ู
ุงุนูุงุด ูุจูู ุจูู zero ูุฐุง ู
ุนูุงู ุงู ุงู a |
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95 |
|
00:09:26,520 --> 00:09:33,330 |
|
ุชุณุงูู ุณุงูุจ ุงุชููู ู ุงู b ุชุณุงูู zeroูุจูู ุฃุตุจุญ ุดูู ุงู |
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96 |
|
00:09:33,330 --> 00:09:46,570 |
|
YP ุนูู ุงูุดูู ุงูุชุงูู ูุจูู |
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97 |
|
00:09:46,570 --> 00:09:50,570 |
|
ุฃุตุจุญ ูุฐุง ุดูู ุงู YP |
|
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98 |
|
00:10:01,840 --> 00:10:11,150 |
|
Y ูุณุงูู YC ุฒุงุฆุฏ YPูุจูู ุจูุงุก ุนููู ูุตุจุญ y ูุณูู yc ูู |
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|
99 |
|
00:10:11,150 --> 00:10:20,070 |
|
ุงูู
ูุฌูุฏ ุนูุฏู ูุจูู c1 cos x ุฒุงุฆุฏ c2 ูู sin x ูุฒุงุฆุฏ |
|
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100 |
|
00:10:20,070 --> 00:10:28,010 |
|
yp ูุงูุต 2x ูู cos x ูุจูู ูุฐุง ุงูุญู ุงูููุงุฆู ุชุจุน ู
ูุ |
|
|
|
101 |
|
00:10:28,010 --> 00:10:32,990 |
|
ุชุจุน ุงูู
ุนุงุฏูุฉ ูุงุญุธู ููุง term ู
ู ุงูุชูุงุช termุงุช ุฒู |
|
|
|
102 |
|
00:10:32,990 --> 00:10:38,240 |
|
ุงูุชุงูู ู
ุงููุด ุชุดุงุจูุจูู ุฃู term ูุงูterm ุงูุซุงูู |
|
|
|
103 |
|
00:10:38,240 --> 00:10:46,440 |
|
ุงูู
ุซุงู ุฑูู
ุฃุฑุจุน ูุจูู example ุฃุฑุจุน |
|
|
|
104 |
|
00:10:46,440 --> 00:10:50,720 |
|
ุจููู |
|
|
|
105 |
|
00:10:50,720 --> 00:10:56,260 |
|
ุฏู term a suitable |
|
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|
106 |
|
00:10:56,260 --> 00:11:03,480 |
|
form ุดูู |
|
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|
107 |
|
00:11:03,480 --> 00:11:09,990 |
|
ู
ูุงุณุจFor the |
|
|
|
108 |
|
00:11:09,990 --> 00:11:19,330 |
|
particular solution |
|
|
|
109 |
|
00:11:19,330 --> 00:11:23,490 |
|
of the |
|
|
|
110 |
|
00:11:23,960 --> 00:11:32,520 |
|
Differential equation ููู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ YW' ูุงูุต |
|
|
|
111 |
|
00:11:32,520 --> 00:11:49,540 |
|
4Y' ุฒุงุฆุฏ 4Y ูุณุงูู 2X ุชุฑุจูุน ุฒุงุฆุฏ 4X E ุฃุณ 2Xุฒุงุฆุฏ ุงูุณ |
|
|
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112 |
|
00:11:49,540 --> 00:11:55,100 |
|
ูู ุตูู ุงุชููู ุงูุณ ููุฐู ุจุฏู ุงุณู
ููุง ุงูู
ุนุงุฏูุฉ ูู ู
ู |
|
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|
113 |
|
00:11:55,100 --> 00:12:00,960 |
|
ุงูstar ูุจูู ุฌุณูู don't |
|
|
|
114 |
|
00:12:00,960 --> 00:12:07,800 |
|
don't evaluate the |
|
|
|
115 |
|
00:12:07,800 --> 00:12:08,620 |
|
constants |
|
|
|
116 |
|
00:12:38,460 --> 00:12:43,640 |
|
ูุงูุจ ุงูููููุฉ ุชุงููููุฑุฃ ุงูุณุคุงู ู
ุฑุฉ ุชุงููุฉ ููุดูู ุดู |
|
|
|
117 |
|
00:12:43,640 --> 00:12:51,120 |
|
ุงูู
ุทููุจ ุจูููููู ุญุฏุฏ ุญู ูู ุดูู ู
ูุงุณุจ ูู particular |
|
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|
118 |
|
00:12:51,120 --> 00:12:54,400 |
|
solution y, z ุชุจุน ุงู differential equation ูุฐุง |
|
|
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119 |
|
00:12:54,400 --> 00:12:57,020 |
|
ูุจูู ุงููุงุณ ุจุชุญุฏุฏ ุดูู ุงู particular solution |
|
|
|
120 |
|
00:12:57,020 --> 00:13:00,840 |
|
ููููููู ู
ุง ุชุญุณุจุด ุงูุซูุงุจุช ุงุถุงูุน ุดูุงุฌุฏู ูุงูุช ุจุชุฌูุจ |
|
|
|
121 |
|
00:13:00,840 --> 00:13:04,120 |
|
ุงูู
ุดุชูุฉ ุงูุฃููู ูุงูุชุงููุฉ ูุงุชุนูุถ ูู ุงูู
ุนุงุฏูุฉ ูุงุชุฌูุจ |
|
|
|
122 |
|
00:13:04,120 --> 00:13:07,940 |
|
ููู ุฌุฏูุด ููู
ุฉ a ูb ุงู a ูb ูc ูู
ุง ุฅูุง ุจุชุฏูุด ููู
ุฉ |
|
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123 |
|
00:13:07,940 --> 00:13:11,650 |
|
ุซูุงุจุช ุจุณ ูุชูู ุดูู mainุงูู Particular solution ููุณ |
|
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|
124 |
|
00:13:11,650 --> 00:13:15,790 |
|
ูุงุฒู
ูููู ููู
ุชู ุซุงู
ุชู ุจูููู ูููุณ ูุจูู ูุญุชุงุฌ |
|
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|
125 |
|
00:13:15,790 --> 00:13:20,350 |
|
ููู
ุนุงุฏูุฉ ูุญุชุงุฌ ุฃู ูุฃุฎุฐ ุงููHomogeneous differential |
|
|
|
126 |
|
00:13:20,350 --> 00:13:24,550 |
|
equation ูุจูู ูุจุฏุฃ ูู
ุง ุจุฏุฃุช ูู ุงูู
ุซุงู ุงููู ูุจูู |
|
|
|
127 |
|
00:13:24,550 --> 00:13:29,290 |
|
let Y ุชุณุงูู E ุฃูุณ RX ุจุฅููุ |
|
|
|
128 |
|
00:13:41,220 --> 00:13:50,680 |
|
ูุจูู ุจุงุฌู ุจูููู the characteristicEquation is R |
|
|
|
129 |
|
00:13:50,680 --> 00:13:56,060 |
|
ุชุฑุจูุน ูุงูุต ุงุฑุจุนุฉ R ุฒุงุฆุฏ ุงุฑุจุนุฉ ูุณุงูู Zero ุงู ุงู |
|
|
|
130 |
|
00:13:56,060 --> 00:14:02,560 |
|
ุดุฆุชู
ูููููุง R ูุงูุต ุงุชููู ููู ุชุฑุจูุน ุชุณุงูู Zero ุงู |
|
|
|
131 |
|
00:14:02,560 --> 00:14:09,370 |
|
ุงู R ุชุณุงูู ุงุชููู ูุงูุญู ูุฐุง ู
ูุจุฑ ูู
ู
ุฑุฉุูุจูู ู
ุฑุชูู |
|
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|
132 |
|
00:14:09,370 --> 00:14:12,850 |
|
ูุจูู of multiplicity two |
|
|
|
133 |
|
00:14:19,800 --> 00:14:25,640 |
|
2 ูุนูู ุงูุญู ู
ูุฑุฑ ู
ุฑุชูู ุจูุงุก ุนููู ุจุฑูุญ ุจูููู ููุง |
|
|
|
134 |
|
00:14:25,640 --> 00:14:32,220 |
|
ูุจูู solution yc ุจุฏู ูุณุงูู ุงูุญู real ู ู
ูุฑุฑ ู
ุฑุชูู |
|
|
|
135 |
|
00:14:32,220 --> 00:14:38,680 |
|
ูุจูู c1 ุฒุงุฆุฏ c2x e ุงุต r |
|
|
|
136 |
|
00:14:44,740 --> 00:14:49,820 |
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ุจูุจุฑูุฒ ูุฐุง ุงูุญู ู ุจูุณูุจู ู ุจูุฑูุญ ูุฑุฌุนูู ุจุนุฏ ูููู |
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137 |
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00:14:49,820 --> 00:14:52,800 |
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ุงูุงู ุจุฏูุง ููุฌู ูู non homogeneous differential |
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138 |
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00:14:52,800 --> 00:14:56,280 |
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equation ุงููู ุงู star ุงููู ุนูุฏูุง ุจุฏูุง ูุชุทูุน ุนูู |
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139 |
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00:14:56,280 --> 00:15:00,240 |
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ุดูู ุงู F of X ุงููู ูู ุงูุดูู ุงููู ุนูุฏูุง ูุฐุง ูู ูู |
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140 |
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00:15:00,240 --> 00:15:05,740 |
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polynomial ููุทุุฃู polynomial ูู exponential ุฃู |
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141 |
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00:15:05,740 --> 00:15:09,360 |
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polynomial ูู sin ุฃู cos ุงูู
ุฌู
ูุนุฉ ุงูุญู
ุฏ ููู ุฌุงูุจุฉ |
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142 |
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00:15:09,360 --> 00:15:13,720 |
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ุงูุชูุช ุญุงูุงุช ูููู
ุจุณุคุงู ุงููุงุนู ูู polynomial ู
ู |
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143 |
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00:15:13,720 --> 00:15:17,180 |
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ุงูุฏุฑุฌุฉ ุงูุซุงููุฉ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู |
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144 |
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00:15:17,180 --> 00:15:21,820 |
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exponential polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู sin ุฅุฐุง |
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145 |
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00:15:21,820 --> 00:15:27,630 |
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ุฅูุด ูุนู
ู ูู ุงูู
ุนุงุฏูุฉ ุงููู ุนูุฏูุูุฌุฒููุง ุฅูู ุซูุงุซ |
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146 |
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00:15:27,630 --> 00:15:31,690 |
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ู
ุนุงุฏูุงุช ุชู
ุงู
ุ ู ุฃุญู ูู ูุงุญุฏุฉ ูููู
ู ุฃุฌูุจ ุงู |
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147 |
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00:15:31,690 --> 00:15:35,390 |
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particular solution ุชุจุนูุง ู ุฃุฌู
ุน ุงูุญููู ุงูุชูุงุชุฉ |
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148 |
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00:15:35,390 --> 00:15:38,810 |
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ุจูุนุทููู ุงู particular solution ูู
ููุ ููู
ุนุงุฏูุงูุฉ |
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149 |
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00:15:38,810 --> 00:15:43,970 |
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ุทุจูุง ูุงููุธุฑูุฉ ุงููู ุฃุนุทุงูููุง ููู
ูู ุฃูู section ูู |
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150 |
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00:15:43,970 --> 00:15:46,970 |
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ุงู non homogeneous differential equation ููููุงูููุง |
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151 |
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00:15:46,970 --> 00:15:53,150 |
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ูุฐุง ุจููุฒู
ูุง ูู
ููุ ูู sections ุงููุงุฏู
ุฉ ุชู
ุงู
ุ ูุจูู |
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152 |
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00:15:53,150 --> 00:16:01,260 |
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ุจุฏุงุฌู ุฃูููู ููุงdifferential equation star is |
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153 |
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00:16:01,260 --> 00:16:08,360 |
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written as ูู
ูููุง ุฃู ููุชุจูุง ุนูู ุงูุดูู ุงูุชุงูู ุงูู y |
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154 |
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00:16:08,360 --> 00:16:14,460 |
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double prime ูุงูุต ุฃุฑุจุนุฉ y prime ุฒุงุฆุฏ ุฃุฑุจุนุฉ y ูุณูู |
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155 |
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00:16:14,460 --> 00:16:20,580 |
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ูู
ุ ูุณูู ุงุชููู x ุชุฑุจูุน ุงูู
ุนุงุฏูุฉ ุงูุซุงููุฉ ุงููู ูู |
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156 |
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00:16:20,580 --> 00:16:33,690 |
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ู
ููุYW'-4Y'ุฒุงุฆุฏ 4Y ูุณุงูู 4XE2X |
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157 |
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00:16:33,690 --> 00:16:45,370 |
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ุงูู
ุนุงุฏูุฉ ุงูุชุงูุชุฉ YW'-4Y'ุฒุงุฆุฏ 4Y ูุณุงูู XSIN2X ูุณุงูู |
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158 |
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00:16:45,370 --> 00:16:50,350 |
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X ูู SIN2X ุจุงูุดูู ุงููู ุนูุฏูุง ูุฐุง |
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159 |
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00:16:58,280 --> 00:17:03,840 |
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ุทูุจุ ุงูุขู ูุนูู ูุฃูู ุตุงุฑ ุนูุฏู ู
ุด ู
ุณุฃูุฉ ูุงุญุฏุฉุ ุซูุงุซ |
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160 |
|
00:17:03,840 --> 00:17:07,120 |
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ู
ุณุงุฆูุ ุจุฏู ุฃุญู ูู ูุงุญุฏ ุฃุฌูุจ ุงู particle solution |
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161 |
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00:17:07,120 --> 00:17:12,980 |
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ูุฃูู ูุง ุนูุงูุฉ ููุง ุจู
ูู ุจุงูุงุฎุฑูุ ูุจูู ููุง ุจุฏู ุฃุฌูุจ |
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162 |
|
00:17:12,980 --> 00:17:20,180 |
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ุงู YP1 ูุจูู YP1 ูุณุงูู X to the power S ูููุ ูุฐู |
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163 |
|
00:17:20,180 --> 00:17:21,740 |
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polynomial ู
ู ุงูุฏุฑุฌุฉ |
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164 |
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00:17:34,810 --> 00:17:40,490 |
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ูู ุงู term ู
ู ููุง ูุดุจู |
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165 |
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00:17:40,490 --> 00:17:42,250 |
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ุงู term ูููุ |
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166 |
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00:17:45,280 --> 00:17:52,060 |
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ู
ุถุฑููุฉ ูุนูู ูุฐุง C1 E2 X ู C2 X E2 ูููุ ู
ุงุนูุฏูุด |
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167 |
|
00:17:52,060 --> 00:17:56,020 |
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exponential ููุงู ุจู
ุงููุด ูุจุฌู ููุง S ุจูุฏุฑ ุงููุ ุจ |
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168 |
|
00:17:56,020 --> 00:18:03,680 |
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Zero ูุจุฌู here ุงู S ุชุณุงูู Zero ูุจุฌู ุฃุตุจุญ Y P1 ุจุฏู |
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169 |
|
00:18:03,680 --> 00:18:11,780 |
|
ูุณุงูู A0 X ุชุฑุจูุน ุฒุงุฆุฏ A1 X ุฒุงุฆุฏ A2 ุณูุจููุง ู
ู ูุฐุง |
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170 |
|
00:18:11,780 --> 00:18:20,370 |
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ููุชูู ุนูู ุงููู ุจุนุฏูุงูุจูู ุจุฏู ุฃูุชุจ ูุจูู |
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171 |
|
00:18:20,370 --> 00:18:23,230 |
|
ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู |
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172 |
|
00:18:23,230 --> 00:18:26,990 |
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exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ |
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173 |
|
00:18:26,990 --> 00:18:32,070 |
|
ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial |
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174 |
|
00:18:32,070 --> 00:18:34,410 |
|
ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ |
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175 |
|
00:18:34,410 --> 00:18:37,350 |
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polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential |
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176 |
|
00:18:37,350 --> 00:18:37,350 |
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ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู |
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177 |
|
00:18:37,350 --> 00:18:37,390 |
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exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ |
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178 |
|
00:18:37,390 --> 00:18:38,650 |
|
ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial |
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179 |
|
00:18:38,650 --> 00:18:38,870 |
|
ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ |
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180 |
|
00:18:38,870 --> 00:18:39,870 |
|
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential |
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181 |
|
00:18:39,870 --> 00:18:40,510 |
|
ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู |
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182 |
|
00:18:40,510 --> 00:18:42,530 |
|
exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃ |
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183 |
|
00:18:42,560 --> 00:18:55,400 |
|
ูู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X |
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184 |
|
00:18:55,400 --> 00:18:56,780 |
|
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S |
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185 |
|
00:18:56,780 --> 00:18:58,460 |
|
ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X |
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186 |
|
00:18:58,460 --> 00:18:58,680 |
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to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S |
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187 |
|
00:18:58,680 --> 00:18:58,680 |
|
ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X |
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188 |
|
00:18:58,680 --> 00:18:58,680 |
|
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S |
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189 |
|
00:18:58,680 --> 00:18:58,680 |
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ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X |
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190 |
|
00:18:58,680 --> 00:18:58,680 |
|
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S |
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191 |
|
00:18:58,680 --> 00:18:59,380 |
|
ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X |
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192 |
|
00:18:59,380 --> 00:19:03,500 |
|
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the powerุทุจ |
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193 |
|
00:19:03,500 --> 00:19:10,940 |
|
ุจุฏู ุงุญุท S ุจูุฏุงุดุ ุจูุงุญุฏ ูู ุญุทูุช S ุจูุงุญุฏ ุจุตูุฑ B0 X |
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194 |
|
00:19:10,940 --> 00:19:15,420 |
|
ุชุฑุจูุฉ ูู ุงู exponential ููู ููู ุฒููุง ุทูุจ ูุดูู ูุฐู |
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195 |
|
00:19:15,420 --> 00:19:21,930 |
|
B1 X ูู ุงู exponentialูู ุฒููุง ูุจูู S ุชุณุงูู ูุงุญุฏ ู
ุด |
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196 |
|
00:19:21,930 --> 00:19:26,830 |
|
ุตุญูุญุฉ ูุจูู ุงุญุท S ุจูุฏุฑุด ุฅุฐุง ูู ุญุทูุช ุงู S ุจุงุชููู |
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197 |
|
00:19:26,830 --> 00:19:31,210 |
|
ุจูุถู ูู ุงูุฏู ุชุดุงุจู ูุจูู ุงุชูุงููู ูุจูู ุจูููู here |
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198 |
|
00:19:31,210 --> 00:19:39,310 |
|
ููุง ุงู S ุชุณุงูู ุงุชููู ูุจูู ุงุตุจุญ Y P2 ุจุฏู ุณุงูู P0 X |
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199 |
|
00:19:39,310 --> 00:19:47,370 |
|
ุชููุจ ุฒู P1 X ุชุฑุจูุน ููู ูู ุงู E ุฃุณ ุงุชููู Xูุนูู ุดููุช |
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200 |
|
00:19:47,370 --> 00:19:51,030 |
|
ุงู S ู ุญุทูุช ู
ูุงู ุงุชููู ุตุงุฑุช X ุชุฑุจูุน ุถุฑุจุช ูููู ูู |
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201 |
|
00:19:51,030 --> 00:19:55,090 |
|
ุงููู ุฌูุง ูุตุงุฑุช ุนูู ุงูุดูู ุงููู ุนูุฏูุง ุจุฏุงุฎู ุงูู
ุนุงุฏูุฉ |
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202 |
|
00:19:55,090 --> 00:20:08,900 |
|
ุงูุชุงูุชุฉุงูู YP3 ุจุฏู ุฃูุชุจ |
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203 |
|
00:20:08,900 --> 00:20:12,180 |
|
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู cosine ุฒู |
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204 |
|
00:20:12,180 --> 00:20:15,160 |
|
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู sine |
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205 |
|
00:20:18,960 --> 00:20:23,360 |
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ูุจูู ุจุฏุฃ ูุงุฎุฏูุง ููุง ูู ุณููุงุช ูุงูุณููุงุช ูุฃ ูู
ุงู ุจุฏู |
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206 |
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00:20:23,360 --> 00:20:28,860 |
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ุงููู ุฏู ุง ุจุฏู ุงููู X to the power S ูู ุงูุฃูู X to |
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207 |
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00:20:28,860 --> 00:20:34,700 |
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the power S ููู ุงูุขู ุจุฏู ุงููู ุฏู ูุงุฏุฉ |
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208 |
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00:20:37,040 --> 00:20:47,000 |
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ูู ูุฐุง ุงูููุงู
ู
ุถุฑูุจ ูู cosine 2x ุฒุงุฆุฏ e node x |
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209 |
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00:20:47,000 --> 00:20:53,980 |
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ุฒุงุฆุฏ e1 ููู ู
ุถุฑูุจ ูู sin 2x ู exponential ู
ุงุนูุฏูุด |
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210 |
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00:20:56,240 --> 00:21:03,100 |
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ูู ุงู term ู
ู ุงูู
ุณุชุทูู ุงููู ููู ูุฐุง ูุดุจู ุฃู term |
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211 |
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00:21:03,100 --> 00:21:07,720 |
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ู
ู ุงูู
ุณุชุทูู ุงููู ููู ูุฐุงุ ูุฃ ููุง ููู sign ููุง ูู |
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212 |
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00:21:07,720 --> 00:21:08,120 |
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ุณุงูู |
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213 |
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00:21:13,370 --> 00:21:20,650 |
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ุงูู S ุจุฏูุง ุชุณุงูู 0 ูุจูู ุฃุตุจุญ YP3 ุจุฏูุง ุชุณุงูู D node |
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214 |
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00:21:20,650 --> 00:21:32,590 |
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X ุฒุงุฆุฏ D1 ูู Cos 2X ุฒุงุฆุฏ E node X ุฒุงุฆุฏ E1 ูู Sin |
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215 |
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00:21:32,590 --> 00:21:38,120 |
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2Xูุจูู ุงูู Particular solution ุงููู ุจุฏูุง ูุง ุจูุงุช |
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216 |
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00:21:38,120 --> 00:21:47,060 |
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ูุจูู ูุณุงูู YP1 ุฒุงุฆุฏ YP2 ุฒุงุฆุฏ YP3 ูุจูู ุฃุตุจุญ YP |
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217 |
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00:21:47,060 --> 00:21:55,380 |
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ูุณุงูู YP1 ูุงู ู ุจูุฒูู ุฒู ู
ุง ูู A0 X ุชุฑุจูุน A1X ุฒุงุฆุฏ |
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218 |
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00:21:55,380 --> 00:21:57,580 |
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A2 ุฒุงุฆุฏ |
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219 |
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00:22:19,860 --> 00:22:21,260 |
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YP2YP3YP4YP5YP6YP7 |
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220 |
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00:22:29,550 --> 00:22:36,330 |
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ูุจูู ูุฐุง ููู ูุนุชุจุฑ ู
ู ุงู particular solution ุงููู |
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221 |
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00:22:36,330 --> 00:22:41,990 |
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ู
ุทููุจ ุนููุง ุญุฏ ููููุง ูุงูู ุชุณุงุคู ููุง ูู ูุฐุง ุงูุณุคุงูุ |
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222 |
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00:22:41,990 --> 00:22:48,270 |
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ูู ุงู ุชุณุงุคูุุทูุจ ุนูู ููู ุงูุชูู ูุฐุง ุงู section ูุฅูู |
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223 |
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00:22:48,270 --> 00:22:55,590 |
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ูููู ุฃุฑูุงู
ุงูู
ุณุงุฆู ูุจูู exercises ุฎู
ุณุฉ ุณุจุนุฉ |
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224 |
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00:22:55,590 --> 00:23:01,730 |
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ุงูู
ุณุงุฆู ุงูุชุงููุฉ ู
ู ูุงุญุฏ ูุบุงูุฉ ุนุดุฑูู ูู
ู ุฎู
ุณุฉ |
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225 |
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00:23:01,730 --> 00:23:08,730 |
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ูุนุดุฑูู ูุบุงูุฉ ุชูุงุชูู ู
ุฑูู |
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226 |
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00:23:08,730 --> 00:23:13,530 |
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ุฃุฏููู ูุฏ ู
ุง ุชูุฏุฑู ุจุชุตูุฑ ูุฐุง ุงูู
ูุถูุน ุจุตูุฑ ุฌุฏุง |
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227 |
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00:23:26,290 --> 00:23:49,450 |
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ุงููู ููู ูุฐุง ุงูุชูููุง ู
ูู ุงุธู ุฎูุงุตุ |
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228 |
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00:23:49,450 --> 00:23:55,440 |
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ุทูุจูู
ุง ููุชูู ุฅูู ุงู section ุงูุฃุฎูุฑ ู
ู ูุฐุง ุงู |
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229 |
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00:23:55,440 --> 00:24:00,320 |
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chapter ููู ุงูุทุฑููุฉ ุงูุซุงููุฉ ู
ู ุทุฑู ุญู ุงู non |
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230 |
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00:24:00,320 --> 00:24:03,800 |
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homogeneous differential equation ููู ุทุฑููุฉ ุงู |
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231 |
|
00:24:03,800 --> 00:24:11,280 |
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variation of parameters ุชุบููุฑ ุงููุณูุทุงุช ูุจูู 85 ุฃู |
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232 |
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00:24:11,280 --> 00:24:19,340 |
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58 ุงููู ูู variation of |
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233 |
|
00:24:20,530 --> 00:24:29,030 |
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Parameters ูุณุชุฎุฏู
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234 |
|
00:24:29,030 --> 00:24:39,410 |
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ูุฐู ุงูุทุฑููุฉ ูุณุชุฎุฏู
ูุฐู ุงูุทุฑููุฉ to find a |
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235 |
|
00:24:39,410 --> 00:24:45,850 |
|
particular solution to find a particular |
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236 |
|
00:24:54,020 --> 00:24:58,120 |
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YP ุงูุฑู
ุฒ ููุฅููุงุน |
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237 |
|
00:25:01,140 --> 00:25:07,280 |
|
Differential equation ููู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ a0 as a |
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238 |
|
00:25:07,280 --> 00:25:14,040 |
|
function of x ุฒุงุฆุฏ ุงู a1 as a function of x ูู |
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239 |
|
00:25:14,040 --> 00:25:21,470 |
|
derivative n minus l1ุฒุงุฆุฏ ูุจูู ู
ุงุดู ูุบุงูุฉ a n |
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240 |
|
00:25:21,470 --> 00:25:27,750 |
|
minus one as a function of x y prime ุฒุงุฆุฏ a n as a |
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241 |
|
00:25:27,750 --> 00:25:33,130 |
|
function of x ูู ุงู y ุจุฏู ูุณุงูู capital F of x |
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242 |
|
00:25:33,130 --> 00:25:36,790 |
|
ููุฐู ุงููู ููุง ุจูุทูู ุนูููุง ุงูู
ุนุงุฏูุฉ ุงูุฃุตููุฉ ุงููู ูู |
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243 |
|
00:25:36,790 --> 00:25:46,210 |
|
starwhere ุญูุซ ุงู a node of x ู ุงู a one of x ู |
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244 |
|
00:25:46,210 --> 00:25:54,330 |
|
ูุบุงูุฉ ุงู a n of x ูุฏูู ูููู
need not need not |
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245 |
|
00:25:54,330 --> 00:26:00,510 |
|
constants need |
|
|
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246 |
|
00:26:00,510 --> 00:26:09,410 |
|
not constants and no restrictionู
ุงุนูุฏูุด ูููุฏ |
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247 |
|
00:26:09,410 --> 00:26:24,010 |
|
ู
ุงุนูุฏูุด |
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248 |
|
00:26:24,010 --> 00:26:24,850 |
|
ูููุฏ ุนูููุง |
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249 |
|
00:26:33,720 --> 00:26:46,600 |
|
YC ูุจุฏู ูุณุงูู C1Y1 ุฒุงุฆุฏ C2Y2 ุฒุงุฆุฏ CNYN Assume that |
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250 |
|
00:26:46,600 --> 00:26:57,440 |
|
is a solution of the homo |
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251 |
|
00:27:10,960 --> 00:27:16,840 |
|
ุฒุงูุฏ ุฒุงูุฏ a n minus 1 as a function of x ูู ุงู y |
|
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252 |
|
00:27:16,840 --> 00:27:23,680 |
|
prime ุฒุงูุฏ a n of x y ุจุฏู ูุณุงูู ูุฏูุ ุจุฏู ูุณุงูู 0 |
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253 |
|
00:27:29,020 --> 00:27:32,880 |
|
to get a |
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254 |
|
00:27:32,880 --> 00:27:37,540 |
|
particular solution |
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255 |
|
00:27:37,540 --> 00:27:46,180 |
|
to get a particular solution yp of the |
|
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256 |
|
00:27:46,180 --> 00:27:56,140 |
|
differential equation star by the method |
|
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257 |
|
00:27:59,990 --> 00:28:07,590 |
|
of variation of |
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258 |
|
00:28:07,590 --> 00:28:20,570 |
|
parameters replace |
|
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259 |
|
00:28:20,570 --> 00:28:32,010 |
|
ุงุณุชุจุฏู replace the above constantsabove constants |
|
|
|
260 |
|
00:28:32,010 --> 00:28:42,250 |
|
in |
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261 |
|
00:28:42,250 --> 00:28:48,930 |
|
the solution yc |
|
|
|
262 |
|
00:28:48,930 --> 00:28:52,550 |
|
by the functions |
|
|
|
263 |
|
00:28:55,020 --> 00:29:10,660 |
|
The functions C1 of X C2 of X ู ูุบุงูุฉ CN of X That |
|
|
|
264 |
|
00:29:10,660 --> 00:29:11,060 |
|
is |
|
|
|
265 |
|
00:29:15,470 --> 00:29:25,490 |
|
YP ูุตุจุญ ุนูู ุงูุดูู ุงูุชุงูู C1 of XY1 C2 of XY2 ุฒุงุฆุฏ |
|
|
|
266 |
|
00:29:25,490 --> 00:29:29,470 |
|
CN of XYN |
|
|
|
267 |
|
00:29:35,370 --> 00:29:44,010 |
|
ุงูู CM as a function of X ูุณูู ุชูุงู
ู ุงููุฑูุณููู M |
|
|
|
268 |
|
00:29:44,010 --> 00:29:51,350 |
|
as a function of X ูู capital F1 of X ุนูู |
|
|
|
269 |
|
00:29:51,350 --> 00:29:59,090 |
|
ุงููุฑูุณููู of X ููู ุจุงููุณุจุฉ ุฅูู DX ูุงูู M |
|
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|
270 |
|
00:30:02,270 --> 00:30:09,990 |
|
ู ูุบุงูุฉ ุงู N ู |
|
|
|
271 |
|
00:30:09,990 --> 00:30:14,950 |
|
ูุบุงูุฉ |
|
|
|
272 |
|
00:30:14,950 --> 00:30:21,750 |
|
ุงู N ู ูุบุงูุฉ ุงู N ู ูุบุงูุฉ ุงู N ู ูุบุงูุฉ ุงู N |
|
|
|
273 |
|
00:30:28,070 --> 00:30:34,350 |
|
is the determinant ุงูู
ุญุฏุฏ |
|
|
|
274 |
|
00:30:34,350 --> 00:30:41,370 |
|
obtained from |
|
|
|
275 |
|
00:30:41,370 --> 00:30:46,810 |
|
ุงููุงูุณููู |
|
|
|
276 |
|
00:30:46,810 --> 00:30:52,130 |
|
of X by replacing |
|
|
|
277 |
|
00:30:58,290 --> 00:31:15,810 |
|
By replacing the M column By the column By |
|
|
|
278 |
|
00:31:15,810 --> 00:31:26,730 |
|
the column Zero Zero ููุธู ู
ุงุดููู ูุบุงูุฉ ุงููุงุญุฏ and |
|
|
|
279 |
|
00:31:30,230 --> 00:31:42,150 |
|
ุงูู F1 of X ุชุณุงูู ุงูู F of X ู
ูุณูู
ุฉ ุนูู A0 of X |
|
|
|
280 |
|
00:31:42,150 --> 00:31:45,550 |
|
Note |
|
|
|
281 |
|
00:31:45,550 --> 00:31:50,310 |
|
When |
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|
|
282 |
|
00:31:50,310 --> 00:32:00,490 |
|
we use the method when weuse the method of |
|
|
|
283 |
|
00:32:00,490 --> 00:32:05,590 |
|
variation |
|
|
|
284 |
|
00:32:05,590 --> 00:32:15,910 |
|
of parameters ุนูุฏู
ุง |
|
|
|
285 |
|
00:32:15,910 --> 00:32:23,110 |
|
ูุณุชุฎุฏู
ูุฐู ุงูุทุฑููุฉ variation of parameters the |
|
|
|
286 |
|
00:32:23,110 --> 00:32:23,850 |
|
coefficient |
|
|
|
287 |
|
00:32:33,870 --> 00:32:45,010 |
|
ูุฌุจ ุงู ูููู ููู
ู ููู
ู |
|
|
|
288 |
|
00:32:45,010 --> 00:32:47,290 |
|
ููู
ู ููู
ู ููู
ู ููู
ู ููู
ู ููู
ู ููู
ู |
|
|
|
289 |
|
00:32:58,790 --> 00:33:11,670 |
|
is of the second order |
|
|
|
290 |
|
00:33:11,670 --> 00:33:14,970 |
|
that |
|
|
|
291 |
|
00:33:14,970 --> 00:33:18,690 |
|
is |
|
|
|
292 |
|
00:33:20,880 --> 00:33:30,340 |
|
ุงูู a0 of x yw prime a1 of x y prime a2 of x y |
|
|
|
293 |
|
00:33:30,340 --> 00:33:35,420 |
|
ุจุฏูุง ุชุณุงูู f |
|
|
|
294 |
|
00:33:35,420 --> 00:33:50,710 |
|
of x and f y1 and y2 are two solutionsare two |
|
|
|
295 |
|
00:33:50,710 --> 00:33:57,990 |
|
solutions of |
|
|
|
296 |
|
00:33:57,990 --> 00:34:12,570 |
|
the homogeneous equation a0 of x yw prime a1 of x |
|
|
|
297 |
|
00:34:12,570 --> 00:34:18,570 |
|
y prime a2 of x y ุจุฏู ูุณุงูู zero then |
|
|
|
298 |
|
00:34:23,050 --> 00:34:33,070 |
|
ุงูู C1 of X ูู ุชูุงู
ู ููุงูุต Y2 as a function of X |
|
|
|
299 |
|
00:34:33,070 --> 00:34:39,550 |
|
ูู ุงูู F1 of X ุนูู ุฑููุณููู X DX |
|
|
|
300 |
|
00:34:43,770 --> 00:34:51,950 |
|
ุงูู C2 as a function of X ุจุฏู ูุณุงูู ุชูุงู
ู ูู
ููุ |
|
|
|
301 |
|
00:34:51,950 --> 00:34:58,690 |
|
ุจุฏู ูุณุงูู ุชูุงู
ู ููู Y1 as a function of X ูู ุงูู |
|
|
|
302 |
|
00:34:58,690 --> 00:35:05,170 |
|
F1 of X ููู ุนูู ุงูู run skin of X ูู ุงูู DX |
|
|
|
303 |
|
00:35:05,170 --> 00:35:10,030 |
|
example |
|
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|
304 |
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00:35:10,030 --> 00:35:10,490 |
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1 |
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305 |
|
00:35:15,200 --> 00:35:26,200 |
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Find the general solution of |
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306 |
|
00:35:26,200 --> 00:35:32,340 |
|
the differential equation ููู
ุนุงุฏูุฉ |
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307 |
|
00:35:32,340 --> 00:35:38,340 |
|
ุงูุชูุงุถููุฉ YW'-2Y |
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308 |
|
00:35:43,090 --> 00:35:51,990 |
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ููู
ุนุงู
ูุฉ ุงูุชุญูู ุนุถููุฉ y |
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309 |
|
00:35:51,990 --> 00:36:03,650 |
|
triple prime ุฒุงุฆุฏ y prime ุจุฏู ูุณุงูู ุณูู x ุจูุณุงูู |
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310 |
|
00:36:03,650 --> 00:36:12,610 |
|
ุณูู x ููุงูุต y ุนูู 2 ุฃูู ู
ู x ุฃูู ู
ู y ุนูู 2 |
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311 |
|
00:37:01,140 --> 00:37:06,600 |
|
ุงูุทุฑููุฉ ุงูุซุงููุฉ ู
ู ุญู ุงูู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ ุบูุฑ |
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312 |
|
00:37:06,600 --> 00:37:11,260 |
|
ุงูู
ุชุฌุงูุณุฉ ูุฐู ุงูุทุฑููุฉ ุณู
ููุง ุงู variation of |
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313 |
|
00:37:11,260 --> 00:37:14,940 |
|
parameters ูุจูู ุฃูู ุทุฑููุฉ ุทุฑููุฉ ุงู undetermined |
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314 |
|
00:37:14,940 --> 00:37:18,380 |
|
coefficients ูุงูุทุฑููุฉ ุงูุซุงููุฉ ุงูุชู ูู ุทุฑููุฉ ุงู |
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315 |
|
00:37:18,380 --> 00:37:23,200 |
|
variation of parameters ุชุบููุฑ ุงููุณูุทุงุช ุชุชูุฎุต ูุฐู |
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316 |
|
00:37:23,200 --> 00:37:26,740 |
|
ุงูุทุฑููุฉ ููู
ุง ูุฃุชูุทุจุนุง ุงูู Undetermined |
|
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317 |
|
00:37:26,740 --> 00:37:30,880 |
|
coefficients ูููุง ู
ุดุงู ูุดุชุบู ุจูุง ุจุฏูู ุดุฑุทูู ุงู |
|
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318 |
|
00:37:30,880 --> 00:37:34,860 |
|
ุงูู
ุนุงู
ูุฉ ุชุซูุงุจุช ู ุงู F of X ุชุจูู ุนูู ุดูู ู
ุนูู ุญุณุจ |
|
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319 |
|
00:37:34,860 --> 00:37:37,660 |
|
ุงูุฌุฏูู ุงููู ุงุนุทุงูุงููุง ูุนููุ ู
ุธุจูุทุ ููุง ุงู |
|
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320 |
|
00:37:37,660 --> 00:37:41,460 |
|
variation ุจููููู ูุฃ ุงูู
ุนุงู
ูุฉ ุชุซูุงุจุช ู ุงููู ู
ุชุบูุฑุฉ |
|
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321 |
|
00:37:41,460 --> 00:37:45,660 |
|
ู
ุงุนูุฏูุด ู
ุดููุฉ ุงู F of X ุงููู ูู ุงูุทุฑู ุงููู
ูู ูุฐู |
|
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322 |
|
00:37:45,660 --> 00:37:49,180 |
|
ุงู F of X ูุงูุช ุนูู ุดูู ู
ุนูู ู ุงููู ุบูุฑ ุนูููุง ุดูู |
|
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323 |
|
00:37:49,180 --> 00:37:53,590 |
|
ู
ุนูู ู
ุงุนูุฏูุด ู
ุดููุฉูุนูู ุฃูุด ู
ุง ูููู ุดูู ุงู F ูููู ู |
|
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324 |
|
00:37:53,590 --> 00:37:56,590 |
|
ุฃูุด ู
ุง ูููู ุงูู
ุนุงู
ูุฉ ุซูุฉ ุจุทููุฉ ู
ุชุบูุฑุงุช ู
ุงุนูุฏูุด |
|
|
|
325 |
|
00:37:56,590 --> 00:38:00,970 |
|
ู
ุดููุฉ ูุจูู ูุฐุง ุงูุดูู ุงูุนุงู
ู ุงูู
ุนุงุฏู ุฃุณุทุงุฑ ุญูุซ ูุฏูู |
|
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326 |
|
00:38:00,970 --> 00:38:05,350 |
|
ุงูุฏูู ููุฉ not ููุตุฉ ููุณ ุจุงูุถุฑูุฑุฉ ูููููุง ููุตุฉ ูุนูู |
|
|
|
327 |
|
00:38:05,350 --> 00:38:08,470 |
|
ู
ู
ูู ูููููุง ููุตุฉ ู ู
ู
ูู ูููููุง ู
ุชุบูุฑุงุช ู
ุงุนูุฏูุด |
|
|
|
328 |
|
00:38:08,470 --> 00:38:12,070 |
|
ู
ุดููุฉ ูู ูุฐู ุงูุนุงูู
and |
|
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|
329 |
|
00:38:13,430 --> 00:38:18,250 |
|
and no restrictions |
|
|
|
330 |
|
00:38:18,250 --> 00:38:23,170 |
|
ู
ุงุนูุฏูุด ูููุฏ ุนูู ุดูู ุงู F of X ูู ุงู Undetermined |
|
|
|
331 |
|
00:38:23,170 --> 00:38:25,650 |
|
ููุช ูุงุจูููููู
ูู ูุงุจูููููู
ูู ูู ุงูุงูุณุจููููุด |
|
|
|
332 |
|
00:38:25,650 --> 00:38:28,830 |
|
ูุงุจูููููู
ูู ูู ุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู |
|
|
|
333 |
|
00:38:28,830 --> 00:38:33,850 |
|
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู |
|
|
|
334 |
|
00:38:33,850 --> 00:38:35,710 |
|
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู |
|
|
|
335 |
|
00:38:35,710 --> 00:38:36,610 |
|
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู |
|
|
|
336 |
|
00:38:36,610 --> 00:38:37,770 |
|
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู |
|
|
|
337 |
|
00:38:37,770 --> 00:38:38,170 |
|
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู |
|
|
|
338 |
|
00:38:38,170 --> 00:38:40,250 |
|
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู |
|
|
|
339 |
|
00:38:40,250 --> 00:38:45,310 |
|
ุงูุงูุณุจููููุด ูู ุงูุงูุณูุฐุง ุงูุดุบู ุงููุญูุฏ ุงููู ูู ุงูุญู |
|
|
|
340 |
|
00:38:45,310 --> 00:38:47,610 |
|
ุงููComplementary Solution ุจุฏู ุฃุฏูุฑ ุนูู ุงูู |
|
|
|
341 |
|
00:38:47,610 --> 00:38:51,270 |
|
Particular Solution ุชุจุน ุงูู
ุนุงุฏูุฉ ู
ููุ ุชุจุน ุงูู
ุนุงุฏูุฉ |
|
|
|
342 |
|
00:38:51,270 --> 00:38:55,570 |
|
Star ูุจุฌู ุจููู ุจุฏู ุฃูุชุฑุถ ุงูุญู ุจุทุฑููุฉ ุงู version of |
|
|
|
343 |
|
00:38:55,570 --> 00:38:59,870 |
|
parameters ูู ููุณ ุงูุญู ูุฐุง ุจุณ ุจุฏู ุฃุดููู ุซูุงุจุช ู |
|
|
|
344 |
|
00:38:59,870 --> 00:39:04,230 |
|
ุฃุถุน ุจุฏููู
ุฏูุงู ูู X ูุจูู Star ุดูู ุงู Particular |
|
|
|
345 |
|
00:39:04,230 --> 00:39:09,490 |
|
Solution ูู C1 of X Y1 ุฒุงุฆุฏ C2 of X Y2 ุฒุงุฆุฏ ุฒุงุฆุฏ |
|
|
|
346 |
|
00:39:09,490 --> 00:39:14,560 |
|
CN ูA of X YNุทูุจ ู
ูู ูู ุงููC ูุงุช ููู ุจุฏู ุฃุญุณุจูุง |
|
|
|
347 |
|
00:39:14,560 --> 00:39:19,980 |
|
ูุฐูุ ุจุนุฏ ุดููุฉ ุญุณุงุจุงุช ูุฌููุง ูู ูุงุนุฏุฉ ุจูุงุณุทุชูุง ุจุฌูุจ |
|
|
|
348 |
|
00:39:19,980 --> 00:39:25,320 |
|
ูู ุฏุงูุฉ ู
ู ูุฐู ุงูุฏููุฉ ู
ูู ููุ ูุงุนุฏุฉ CM of XM ุทุจุนุง |
|
|
|
349 |
|
00:39:25,320 --> 00:39:29,500 |
|
ุจูุงุญุฏ ูุงุซููู ูุบุงูุฉ ุงู N ูุนูู ุจC ูุงุญุฏ ูC ุงุชููู ูC |
|
|
|
350 |
|
00:39:29,500 --> 00:39:34,890 |
|
ุชูุงุชุฉ ูุฏู ุงูุงุฎุฑูููุณุงูู ุงูู Ronschen M F1 of X ุนูู |
|
|
|
351 |
|
00:39:34,890 --> 00:39:38,530 |
|
Ronschen of X DX ูุฌู ุนูู ุงูู Ronschen of X ุงูู |
|
|
|
352 |
|
00:39:38,530 --> 00:39:42,330 |
|
Ronschen ูุฐุง ุงูุชุงุจุน ุงูุญููู ุงููู ูู ุงูุญุงูุฉ ุงูุฃููู |
|
|
|
353 |
|
00:39:42,330 --> 00:39:46,190 |
|
Y1 ู Y2 ู YN ุจุฌูุจ ุงููู ูู
ุงูู Ronschen ุจูููู ูุฐุง |
|
|
|
354 |
|
00:39:46,190 --> 00:39:50,140 |
|
ูู ุงูู Ronschen ุชุจุน ุญุตูู ุนูู ุดุฌุฑุฉุจุฏู ุฑููุณููู 1 ู |
|
|
|
355 |
|
00:39:50,140 --> 00:39:54,760 |
|
ุฑููุณููู 2 ู ุฑููุณููู 3 ูุบุงูุฉ ุฑููุณููู N ู
ูู ูู ูุฐุงุ |
|
|
|
356 |
|
00:39:54,760 --> 00:39:58,720 |
|
ูุฐุง ุงู ุฑููุณููู 1 ุจุงุฌู ุนูู ุงู ุฑููุณููู ู ุฏู ุจุดูู |
|
|
|
357 |
|
00:39:58,720 --> 00:40:02,880 |
|
ุงูุนู
ูุฏ ุงูุฃูู ู ุจุญุท ุจุฏุงูู ุงูุนู
ูุฏ ูุฐุง ู ุจุญุณุจ ูุฏุงุด |
|
|
|
358 |
|
00:40:02,880 --> 00:40:07,890 |
|
ููู
ุฉ ุงู ุฑููุณููู ุทุจ ุจุฏู ุฑููุณููู 2ุจุณูุจ ุงูุฑููุณููู ูุฐุง |
|
|
|
359 |
|
00:40:07,890 --> 00:40:13,670 |
|
ุฒู ู
ุง ูู ู ุจุฌู ุนูู ุงูุนู
ูุฏ ุงูุซุงูู ุจุดููู ููู ู ุจุญุท |
|
|
|
360 |
|
00:40:13,670 --> 00:40:16,810 |
|
ุจุฏุงูู ุงูุนู
ูุฏ ูุฐุง ู ููุฐุง ุงูุฑููุณููู ุซูุงุซุฉ ุฑููุณููู |
|
|
|
361 |
|
00:40:16,810 --> 00:40:21,210 |
|
ูุบุงูุฉ ุจูู
ููู
ูููู
ูุจูู ูู ูุฐู ุงูุญุงูุฉ ุฌุจุชูุง ุทุจ ู
ูู |
|
|
|
362 |
|
00:40:21,210 --> 00:40:25,850 |
|
ูู ุงู F1 ูุฐูุ ุงู ุงู F1 ูุฐู ูู
ุง ุชูุฌู ุงูู
ุนุงุฏูุฉ ุจุฏ |
|
|
|
363 |
|
00:40:25,850 --> 00:40:30,310 |
|
ุงูู
ุนุงุฏูุฉ ููุง ุงูู
ุนุงู
ู ุชุจุนู ูููู ุฌุฏูุดูุฐุง ูุนูู ุฃููู |
|
|
|
364 |
|
00:40:30,310 --> 00:40:36,110 |
|
ุฃุฌุณู
ุงูุทุฑููู ุนูู ู
ูู ุนูู a node of x ูุจูู ุงู F1 ูู |
|
|
|
365 |
|
00:40:36,110 --> 00:40:42,270 |
|
ุนุจุงุฑุฉ ุนู Fx ู
ูุณูู
ุฉ ุนูู ุงู a node of x ูุจูู ุงู F1 |
|
|
|
366 |
|
00:40:42,270 --> 00:40:47,270 |
|
of x ูู ุงู F of x ู
ูุณูู
ุฉ ุนูู ู
ูู ุนูู ุงู a node of |
|
|
|
367 |
|
00:40:47,270 --> 00:40:52,490 |
|
x ุฃุตูุง ูุงุถุญ ููุงู
ูุฐุง ุทูุจ ุงูุขู ูู ู
ูุงุญุธุฉ ุจุฏูุง ูุดูุฑ |
|
|
|
368 |
|
00:40:52,490 --> 00:40:57,290 |
|
ุฅูููุง ุงูู
ูุงุญุธุฉ ูุงูุช ุชุงููุฉููุชูุง ุจุณ ุจุฏูุง ูุนูุฏูุง ููุง |
|
|
|
369 |
|
00:40:57,290 --> 00:41:00,590 |
|
ุนูุฏู
ุง ูุณุชุฎุฏู
ุงู variation of parameters ูุงุฒู
ูููู |
|
|
|
370 |
|
00:41:00,590 --> 00:41:05,610 |
|
ุงูู
ุนุงู
ู ุชุจุน Y ุงู ูู ู
ูู ู ุงูุณูุช ู ุญุทูุช ุงู F of X |
|
|
|
371 |
|
00:41:05,610 --> 00:41:11,110 |
|
ูุฐู ุจุฏู ูุฐู ุจุตูู ููุงู
ู ุบูุท ุจุตูู ุชุญููุด ู ู
ุงุชูุฏุฑุด |
|
|
|
372 |
|
00:41:11,110 --> 00:41:16,250 |
|
ุชุชูุงู
ูู ุชู
ุงู
ูุจูู ุชุชุฃูุฏู ุนูุฏู
ุง ุจุฏู ุชุณุชุฎุฏู
ุงูุชูุงู
ู |
|
|
|
373 |
|
00:41:16,250 --> 00:41:20,390 |
|
ุจุชุฎูู ุงูู
ุนุงู
ู ุชุจุน Y to the derivative ุงู ูู ูุงุญุฏ |
|
|
|
374 |
|
00:41:20,390 --> 00:41:24,610 |
|
ุตุญูุญ ุชู
ุงู
ูู ูุทุจุฉ ุงูุฃููู ุจุนุฏูู ูููุง ู
ูุงุญุธุฉ ุชุงููุฉ |
|
|
|
375 |
|
00:41:25,260 --> 00:41:28,720 |
|
ุจูููู ุงู equation star ูุฐู ูู ูุงูุช ู
ู ุงูุฑุชุจุฉ |
|
|
|
376 |
|
00:41:28,720 --> 00:41:32,680 |
|
ุงูุซุงููุฉ ูุจูู ุจุฏู ุงูุฑููุณููู 1 ู ูุต ููุชูุง ู
ุญุณุจุฉ ู |
|
|
|
377 |
|
00:41:32,680 --> 00:41:38,320 |
|
ุฎุงูุตุฉ ู ุฌุงูุฒุฉ ุงูุดู ุจูููู ุงู C 1 of X ุจุชุญุท ููุญู |
|
|
|
378 |
|
00:41:38,320 --> 00:41:42,940 |
|
ุงูุชุงูู ุจุฅุดุงุฑุฉ ุณุงูุจ ูู ุงู F 1 of X ุนูู ุงูุฑููุณููู of |
|
|
|
379 |
|
00:41:42,940 --> 00:41:48,260 |
|
X ุทูุจ ู ุงู C2ุ ู ุงู C2 ูู ุงูุญู ุงูุฃูู ูู ุงู 1 of X |
|
|
|
380 |
|
00:41:48,260 --> 00:41:51,850 |
|
ุนูู ู
ููุ ุนูู ุงู W of Xูุจูู ูู
ุงู ูุงุจุฏ ุชุญุณุจ |
|
|
|
381 |
|
00:41:51,850 --> 00:41:54,950 |
|
ุงูููุฑูููุณูู ูุฃ ูุฐุง ุฅู ูุงูุช ู
ู ุงูุฑุชุจุฉ ุงูุซุงููุฉุ ู
ู |
|
|
|
382 |
|
00:41:54,950 --> 00:41:59,930 |
|
ุงูุฑุชุจุฉ ุงูุชุงูุชุฉุ ุจุฏู ุฃุฑุฌุน ุนุงูู
ูุง ููููุงู
ุงูุฃููุ ูุงุถุญ |
|
|
|
383 |
|
00:41:59,930 --> 00:42:03,590 |
|
ููุงู
ูููุ ุงูุฃู
ู ุงููู ุญุทูู ุนูู ุฃุฑุถ ูุงูุนุฉ ุฌุงูู ูุญู |
|
|
|
384 |
|
00:42:03,590 --> 00:42:08,430 |
|
ุงูู
ุนุงุฏูุฉ ูุฐูุจูููู ุชู
ุงู
ูุจูู ุงูุง ุจุฏู ุงุจุฏุง ุจุญู ุงู |
|
|
|
385 |
|
00:42:08,430 --> 00:42:12,190 |
|
homogenous differential equation ูู
ุง ููุง ู
ู ูุจู |
|
|
|
386 |
|
00:42:12,190 --> 00:42:19,470 |
|
ูุจูู ุจุงุฌู ุจูููู ููุง let Y ุชุณุงูู E ุฃูุณ RX ุจูู |
|
|
|
387 |
|
00:42:19,470 --> 00:42:21,090 |
|
solution |
|
|
|
388 |
|
00:42:27,760 --> 00:42:36,620 |
|
ูุจูู ููุง the characteristic equation is R ุชูุนูุจ |
|
|
|
389 |
|
00:42:36,620 --> 00:42:42,820 |
|
ุฒุงุฆุฏ R ูุณุงูู 0ูุจูู R ูู R ุชุฑุจูุน ุฒุงุฆุฏ ูุงุญุฏ ุจุฏู |
|
|
|
390 |
|
00:42:42,820 --> 00:42:49,640 |
|
ูุณุงูู Zero ูุจูู R ุชุณุงูู Zero ูR ุชุณุงูู ุฒุงุฆุฏ ุงู ูุงูุต |
|
|
|
391 |
|
00:42:49,640 --> 00:42:54,680 |
|
I ูุจูู ุจูุงุก ุนููู ุจูููู ุงู complementary solution |
|
|
|
392 |
|
00:42:54,680 --> 00:43:06,080 |
|
YC ุจุฏู ูุณุงูู C ูุงุญุฏ ูู ุงู E ุงู Zeroุฒุงุฆุฏ C2 Cos X |
|
|
|
393 |
|
00:43:06,080 --> 00:43:12,420 |
|
ุฒุงุฆุฏ C3 Sin X ูุฃูู ุฒุงุฏุฉ ูููุต I ุงู A ุจุงูุฒูุฑู ูุงูB |
|
|
|
394 |
|
00:43:12,420 --> 00:43:18,860 |
|
ุจุงูู
ูู ุจูุงุญุฏ ูุจูู ูุฐุง ุงูุดูู ุงูู
ุนุงุฏูุฉ |
|
|
|
395 |
|
00:43:18,860 --> 00:43:24,210 |
|
ุงูุฃุตููุฉ ุจูุงุชูุง ุฏู ุณู
ููุง ุงู starุงูุงู ุงูุง ุจุฏู ุงูุชุจ |
|
|
|
396 |
|
00:43:24,210 --> 00:43:30,330 |
|
ุดูู ุงู particular solution ููู
ุนุงุฏูุฉ star ู ูุงุญุธู |
|
|
|
397 |
|
00:43:30,330 --> 00:43:34,890 |
|
ุงู ุงูู
ุนุงู
ู ุชุจุน ุงูู
ุดุชูุฉ ุงูุฃููู ูู ูุงุญุฏ ุตุญูุญ ุงูู
ุฑุฉ |
|
|
|
398 |
|
00:43:34,890 --> 00:43:39,210 |
|
ูุฐู ูุนูู ูุง ูู ูู ููุง ุฏูุฑ ุนู ุงูุดุบู ู
ุจุงุดุฑ ูู ูุฐุง |
|
|
|
399 |
|
00:43:39,210 --> 00:43:47,730 |
|
ุงูุณุคุงู ูุจูู ุจุงุฌู ุจูููู the particular solution |
|
|
|
400 |
|
00:43:47,730 --> 00:43:50,430 |
|
of |
|
|
|
401 |
|
00:44:02,410 --> 00:44:12,710 |
|
ูุจูู C1 of X ุฒุงุฆุฏ C2 of X ูู Cos X ุฒุงุฆุฏ C3 of X ูู |
|
|
|
402 |
|
00:44:12,710 --> 00:44:20,090 |
|
Sin Xุจุนุฏ ููู ุจุชุฑูุญ ุงุฌูุจ ุงูุฑููุณููู ูุจูู ูุฐุง |
|
|
|
403 |
|
00:44:20,090 --> 00:44:25,810 |
|
ุงูุฑููุณููู as a function of x ูู
ูู ุงูุฑููุณููู ููุญููู |
|
|
|
404 |
|
00:44:25,810 --> 00:44:31,670 |
|
ุงูุชูุงุชุฉ ุงูุญู ุงูุฃูู ูุฏุงุด ููุง ุจูุงุช ูุงุญุฏ ูุงูุญู ุงูุชุงูู |
|
|
|
405 |
|
00:44:31,670 --> 00:44:36,690 |
|
cosine ุงู X ูุงูุญู ุงูุชุงูุช sin X ูุจูู ูู ุซูุงุซุฉ ุญููู |
|
|
|
406 |
|
00:44:36,690 --> 00:44:43,960 |
|
ูุจูู ูู ูุงุญุฏ ูุงูุชุงูู cosine ุงู X ูุงูุชุงูุช sin Xูุจูู |
|
|
|
407 |
|
00:44:43,960 --> 00:44:50,280 |
|
ุงูู
ุดุชูุฉ Zero ุงูู
ุดุชูุฉ ุณุงูุจ Sine X ุงูู
ุดุชูุฉ Cos X |
|
|
|
408 |
|
00:44:50,280 --> 00:44:58,140 |
|
ูู
ุงู ู
ุฑุฉ Zero ูุงูุต Cos X ูุงูุต Sine X ุจุฏู ุงููู |
|
|
|
409 |
|
00:44:58,140 --> 00:45:05,170 |
|
ุจุงุณุชุฎุฏุงู
ุนูุงุตุฑ ุงูุนู
ูุฏ ุงูุฃูููุจูู ูุงุญุฏ ููู ูุดุท ุจุตูู |
|
|
|
410 |
|
00:45:05,170 --> 00:45:11,630 |
|
ุนู
ูุฏู ูุจูู sin ุชุฑุจูุน ุงู X ุฒุงุฆุฏ cosine ุชุฑุจูุน ุงู X |
|
|
|
411 |
|
00:45:11,630 --> 00:45:16,650 |
|
ุงููู ูู ูุฏุงุดุฑ ุงููุงุญุฏ ุจุฏู ุฃุฌูุจ ุงูุฑููุณ ููู ูุงู as a |
|
|
|
412 |
|
00:45:16,650 --> 00:45:20,810 |
|
function of X ุจุฏู ุฃุดูู ุงูุนู
ูุฏ ูุฐุง ู ุฃุณุชุจุฏูู |
|
|
|
413 |
|
00:45:20,810 --> 00:45:31,390 |
|
ุจุงูุนู
ูุฏ 001ูุงูุงุชููู ูุฏูู ุฒู ู
ุง ูู
cos x sin x-sin |
|
|
|
414 |
|
00:45:31,390 --> 00:45:41,050 |
|
x cos x-cos x-sin x ููุณุงููุจูุฏููู ุจุฑุถู ุจุงุณุชุฎุฏุงู
|
|
|
|
415 |
|
00:45:41,050 --> 00:45:46,830 |
|
ุงูุนู
ูุฏ ุงูุฃูู ูุจูู zero ูุงูุต zero ุฒุงุฆุฏ ูุงุญุฏ ูู ุฃุดุท |
|
|
|
416 |
|
00:45:46,830 --> 00:45:51,250 |
|
ุจุตูู ุนู
ูุฏู cosine ุชุฑุจูู ุฒุงุฆุฏ sine ุชุฑุจูู cosine |
|
|
|
417 |
|
00:45:51,250 --> 00:45:57,430 |
|
ุชุฑุจูู ุงู X ุฒุงุฆุฏ sine ุชุฑุจูู ุงู X ููู ุจูุฏุงุด ุจูุงุญุฏ |
|
|
|
418 |
|
00:45:57,910 --> 00:46:02,810 |
|
ูุจูู ุจูุงุก ุนููู ุจุฏู ุงุฌูุจ ุงูุฑููุณูู ุงุชููู as a |
|
|
|
419 |
|
00:46:02,810 --> 00:46:05,910 |
|
function of x ูุจูู ุงูุนู
ูุฏู ุงููู ุงููู ูู ุจุฏู ุงุฑุฌุน |
|
|
|
420 |
|
00:46:05,910 --> 00:46:09,970 |
|
ูู
ุง ูุงู ูุง ุจูุงุช ุงู ูุงุญุฏ zero zero ุงูุนู
ูุฏู ุงูุชุงูู |
|
|
|
421 |
|
00:46:09,970 --> 00:46:13,550 |
|
ูู ุงููู ุจุฏู ุงุณุชุจุฏูู ุจ zero zero ูุงุญุฏ ูุงูุนู
ูุฏู |
|
|
|
422 |
|
00:46:13,550 --> 00:46:20,110 |
|
ุงูุชุงูุช ูู
ุง ูุงู sine ุงู X cosine ุงู X ูุงูุต sine ุงู |
|
|
|
423 |
|
00:46:20,110 --> 00:46:25,970 |
|
Xูุจูู ุจูุงุก ุนููู ูุฐุง ุงูููุงู
ูุณุงูู ุจุฏุง ููู ุจุงุณุชุฎุฏุงู
|
|
|
|
424 |
|
00:46:25,970 --> 00:46:31,590 |
|
ุนูุงุตุฑ ุงูุนู
ูุฏ ุงูุฃูู ูุจูู ูุดุท ุจุตูู ูุนู
ูุฏู zero ูุงูุต |
|
|
|
425 |
|
00:46:31,590 --> 00:46:36,470 |
|
cosine ุงู X ูุจูู ูุงูุต cosine ุงู X ุฎูููุง ูุฌูุจ |
|
|
|
426 |
|
00:46:36,470 --> 00:46:43,350 |
|
ุงูุฑููุณููู 3 as a function of X ูุณุงูู 1 0 0 ุงูุนู
ูุฏ |
|
|
|
427 |
|
00:46:43,350 --> 00:46:50,590 |
|
ุงูุชุงูู ูู
ุง ูู cosine ุงู X ูุงูุต sine ุงู Xูููุง ูุงูุต |
|
|
|
428 |
|
00:46:50,590 --> 00:46:58,270 |
|
cosine ุงู X ูููุง 001 ุจุงูุดูู ุงููู ุงููุนูุงู ุจุฏุง ุงููู |
|
|
|
429 |
|
00:46:58,270 --> 00:47:02,590 |
|
ุจุงุณุชุฎุฏุงู
ุนูุงุตุฑ ุงูุนู
ูุฏ ุงูุฃูู ุจุฌูุดุท ุจุตู ู ุนู
ูุฏู ูุงูุต |
|
|
|
430 |
|
00:47:02,590 --> 00:47:11,780 |
|
sin Xุฎููุตูุง ู
ููุ ุณุฃุญุตู ุนูู ุงูู C1 as a function of |
|
|
|
431 |
|
00:47:11,780 --> 00:47:19,880 |
|
X ุงูุชูุงู
ู ู
ู ุฃููุ ุงูุชูุงู
ู ููู Ronskin 1 of X ูู |
|
|
|
432 |
|
00:47:19,880 --> 00:47:24,260 |
|
ุงูู F of X ูุง ููุฌุฏ ูููุง ุชุบููุฑ ูู
ุง ูู ุนูู ุงูู |
|
|
|
433 |
|
00:47:24,260 --> 00:47:30,180 |
|
Ronskin of X ููู ุจุงููุณุจุฉ ุฅูู DX ูุณูู ุชูุงู
ู Ronskin |
|
|
|
434 |
|
00:47:30,180 --> 00:47:35,670 |
|
1 ุทูุนูุงู ุจูุฏุฑุด ุจูุงุญุฏูุจูู ูุฐุง ูุงุญุฏ ููู ุงู F of X |
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|
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435 |
|
00:47:35,670 --> 00:47:41,410 |
|
ุงููู ูุจูู ุฏูุดุฉ ุจูุงุช ุณู ุงู X ุงุฒุงูู ุนูู ุณู ุงู X ุนูู |
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436 |
|
00:47:41,410 --> 00:47:47,270 |
|
ุงูุฑููุณููู of X ุงูุฃูู ุจุฑุถู ูุงุญุฏ ููู DX ูุจูู ุชูุงู
ู |
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437 |
|
00:47:47,270 --> 00:47:53,190 |
|
ุงูุณู ููู absolute value ูุณู ุงู X ุฒุงุฆุฏ ุชุงูู ุงู X |
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|
438 |
|
00:47:53,190 --> 00:47:59,710 |
|
ุจุฏูุง ูุฌูุจ C2 as a function of Xูุจูู ุชูุงู
ู ุฑูุณููู 2 |
|
|
|
439 |
|
00:47:59,710 --> 00:48:06,470 |
|
of x ูู f of x ุนูู ุฑูุณููู of x dx ูุณูู ุชูุงู
ู |
|
|
|
440 |
|
00:48:06,470 --> 00:48:11,790 |
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ุฑูุณููู 2 ูู ุจูุงูุต cos x |
|
|
|
441 |
|
00:48:22,510 --> 00:48:28,490 |
|
ูุจูู ุชูุงู
ู ููุงูุต DX ูุจูู ุจูุงูุต X ู ูุง ุชูุชุจู |
|
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|
442 |
|
00:48:28,490 --> 00:48:33,650 |
|
Constants ูุฃู ูู ุตูุงุฉ ู ูุชุงุจ ูุนู
ููุง ููู ุชูุฑุงุฑ ูุจูู |
|
|
|
443 |
|
00:48:33,650 --> 00:48:38,510 |
|
ุณูุจูู ู
ู ุงูุชูุฑุงุฑ ูุจูู ุจูุชุจูุง ููุท ุฒู ููู ุจุฏุฃ ูุงุฎุฏ |
|
|
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444 |
|
00:48:38,510 --> 00:48:39,590 |
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C3 |
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|
445 |
|
00:48:46,760 --> 00:48:54,240 |
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ูุจูู ุจูุฏู C3A of X ูุจูู ูุณุงูู ุชูุงู
ู ุฑููุณููู 3 of X |
|
|
|
446 |
|
00:48:54,240 --> 00:49:00,900 |
|
ูู F of X ุนูู ุฑููุณููู of X DX Y ูุณุงูู ุงูุฑููุณููู 3 |
|
|
|
447 |
|
00:49:00,900 --> 00:49:09,010 |
|
ูู ุณุงูุจ ุตูู Xูุงูุฏุงูุฉ ุณู ุงู X ูุงูุฑู
ุฒ ูุงู ูุงุญุฏ DX |
|
|
|
448 |
|
00:49:09,010 --> 00:49:15,810 |
|
ูุจูู ูุณุงูู ุชูุงู
ู ุณุงูู sin X ุงูุณู ู
ููุจ ุงู cos X DX |
|
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|
449 |
|
00:49:15,810 --> 00:49:20,570 |
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ุงุธู ุงูุจุณุทุฉ ูุงุถู ุงูู
ูุงู
ูุจูู ุงูุฌูุงุจ ููู absolute |
|
|
|
450 |
|
00:49:20,570 --> 00:49:28,570 |
|
value ู cos X ูุจูู ุฌุจุช ุงูุณููุงุชู ุชูุงุชุฉ ูุจูู ุณุงุฑ YP |
|
|
|
451 |
|
00:49:28,570 --> 00:49:33,720 |
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ูุณุงูู ููู YP ูุง ุจูุงุชูููุจุฏู ุงุดูู ุงูู C1 ุงูู C1 |
|
|
|
452 |
|
00:49:33,720 --> 00:49:38,720 |
|
ุฌูุจูุงูุง ุงููู ูู ูุฏุงุด ุงููู ูู ุงู N absolute value |
|
|
|
453 |
|
00:49:38,720 --> 00:49:47,480 |
|
ูุณู ุงู X ุฒุงุฆุฏ ุชุงูู ุงู X ุฒุงุฆุฏ C2 ููู C2 ููู ุฒุงุฆุฏ |
|
|
|
454 |
|
00:49:47,480 --> 00:49:52,280 |
|
ุงููู ูู ูุงูุต X ูู ู
ููุ ูู cosine ุงู X |
|
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|
455 |
|
00:50:04,270 --> 00:50:12,930 |
|
ูุจูู y ูุณูู yc ูู |
|
|
|
456 |
|
00:50:12,930 --> 00:50:23,580 |
|
ุชุญุช ูุจูู c ูุงุญุฏุฒุงุฆุฏ C2 Cos X ุฒุงุฆุฏ C3 Sin X ุฒุงุฆุฏ YP |
|
|
|
457 |
|
00:50:23,580 --> 00:50:28,540 |
|
ูุงู ู ุจุฏู ูุฒูู ุฒู ู
ุง ูู ุจุณ ููู ุฎุงุทุฑ ุงุฑุชุจู ูุจูู ูุงู |
|
|
|
458 |
|
00:50:28,540 --> 00:50:36,820 |
|
Sin X ูู Lin absolute value ู Cos X ูุงูุต X ูู Cos |
|
|
|
459 |
|
00:50:36,820 --> 00:50:45,600 |
|
X ุฒุงุฆุฏ Lin absolute value ูุณู Xุฒุงุฆุฏ ุชุงู ุงู X ููุงู |
|
|
|
460 |
|
00:50:45,600 --> 00:50:50,160 |
|
ุงููู ุจุงูุณุฑ ุนูููุง ูุจูู ูุฐุง ุญู ุงูุณุคุงู ุงููู ุนูุฏูุง |
|
|
|
461 |
|
00:50:50,160 --> 00:50:54,780 |
|
ุชู
ุงู
ู ููุฐุง ูุนูู ุงูุดุบู ุจูุฐู ุงูุทุฑููุฉ ุทุจุนุง ูู ุฌูุจูุงู |
|
|
|
462 |
|
00:50:54,780 --> 00:50:58,200 |
|
ุณุคุงู ูู ุงูุงู
ุชุญุงู ูู ูุฒูุฏ ุนู ุงูุฑุชุจุฉ ุงูุชุงูุชุฉ ุงู |
|
|
|
463 |
|
00:50:58,200 --> 00:51:01,780 |
|
ุฏุฎููุง ูู ุงูุฑุชุจุฉ ุงูุฑุงุจุนุฉุจุฏู ู
ุญุฏุฏ ู
ู ุงูุฏุฑุฌุฉ ุงูุฑุงุจุนุฉ |
|
|
|
464 |
|
00:51:01,780 --> 00:51:05,760 |
|
ุจูุงุฎุฏ ููุช ูุชูุฑ ู ุงูุช ุชุญู ููู ูุจูู ููุท ู
ู ุงูุฏุฑุฌุฉ |
|
|
|
465 |
|
00:51:05,760 --> 00:51:11,260 |
|
ุงูุซุงูุซุฉ ุงู ุงูุฏุฑุฌุฉ ุงูุซุงููุฉ ุงู ุดุงุก ุงููู ูุงุฒููุง ูู |
|
|
|
466 |
|
00:51:11,260 --> 00:51:15,600 |
|
ููุณ ุงู section ู ูู
ุง ููุชูู ุจุนุฏ ูู ุนูุฏู ุจุนุถ ุงูุฃู
ุซูุฉ |
|
|
|
467 |
|
00:51:15,600 --> 00:51:20,060 |
|
ุนูู ููุณ ุงูู
ูุถูุน ุจุงูุงุถุงูุฉ ุงูู ุงุฎุฑ ุทุฑููุฉ ุงููู ูู |
|
|
|
468 |
|
00:51:20,060 --> 00:51:24,340 |
|
ุทุฑููุฉ reduction of order ูุงุฎุชุฒุงู ุงูุฑุชุจุฉ ููู
ุญุงุถุฑุฉ |
|
|
|
469 |
|
00:51:24,340 --> 00:51:26,760 |
|
ุงูููู
ุจุนุฏ ุงูุธูุฑ ุงู ุดุงุก ุงููู ู ุชุนุงูู |
|
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|