Question

cos x / 1 + sin x = tan ( π / 4 - x / 2 )

Answer 1

Answer:

The answer is proved.

following identities are used :

$\sin( \alpha ) = 2 \sin( \frac{ \alpha}{2} ) \cos(\frac{ \alpha}{2})$

$\sin( \frac{\pi}{2} - x ) = \cos(x)$

$\cos( \frac{\pi}{2} - x) = \sin(x)$

Step-by-step explanation:

The answer is explained in the image.