FSc Math Book1, Ch 10, LEC 20: Double angle identities
Channel: Maktab. pk
Date: 2016-12-08

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This video lecture from Trigonometric Identities (F.Sc. first year Mathematics) covers: detailed discussion on concept and proof of double angle identities. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.