Question

(1 + sin x-cosx)/
(1 + sin x + cosx)​

Answer 1

Answer:

$( \cos( \frac{\pi}{4} - \frac{x}{2 } ) - \sin(\frac{\pi}{4} - \frac{x}{2 } )) \div (( \cos( \frac{\pi}{4} - \frac{x}{2 } ) + \sin(\frac{\pi}{4} - \frac{x}{2 } )))$

Step-by-step explanation:

take

$\frac{\pi}{2} - x$

and then use cosine half angle formula..