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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

0

B

`(1)/(2)`

C

`(pi)/(4)`

D

1

Text Solution

Verified by Experts

The correct Answer is:
D
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