Question

Prove that 1- cos 2θ+sin 2θ/ 1+ cos 2θ+ sin 2θ = tan θ

Answer 1

ques must be 1- cos ²θ+sin ²θ/ 1+ cos ²θ+ sin ²θ = sin² θ if u meant sin²ø and cos ²ø then u will find my ans helpful ...sorry for poor readibility

Answer 2

Answer:

LHS.= Sin 2x /( 1 + cos2x ). We have , sin 2x = 2 sinx•cosx. And. cos2x = 2cos^2 x - 1. i.e . 1+ cosx 2x = 2cos^2x. Putting the above results in the LHSwe ...