Question

(tanθ+sinθ)/(2tanθ)=cos^2((θ)/(2)) verify the identity (tanθ+sinθ)/(2tanθ)=cos^2((θ)/(2)) verify the identity @Mathematics

Answer 1

try converting to sin and cos

= sinx / cos x + sinx / 2sinx/cosx

= sin x + sinxcosx cos x
-------------- * ----
cos x 2sin x

= 1 + cos x
--------
2
= cos^2 (x/2)