If y=tan^(-1)(( sin x + cosx)/(cosx-sinx...

If `y=tan^(-1)(( sin x + cosx)/(cosx-sinx))` then `(dy)/(dx)` is equal to

A

`1//2`

B

`pi//4`

C

0

D

1

Verified by Experts

The correct Answer is:

B

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