Find the  value of    `(i) cos 480^(@) "   " (ii) sin 1230^(@) "   "(iii) cot (-135^(@))`   `(iv)
Channel: Doubtnut
Date: 2020-04-19

Find the  value of    `(i) cos 480^(@) "   " (ii) sin 1230^(@) "   "(iii) cot (-135^(@))`   `(iv)  "cosec "(-1410^(@))"  "(v) cos (-870^(@)) "  "(vi) tan 330^(@)`