(cosec? 0 + 2tanf.cotd — cot?0) F1 7 2 : – InterviewSolution

1.

(cosec? 0 + 2tanf.cotd — cot?0) F1 7 2 :

Answer»

cosec^2 theta + 2tan theta. cot theta - cot^2 theta

= (cosec^2 theta - cot^2 theta) + 2tan theta.1/tan theta

= 1 + 2

= 3

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