If y=tan^(-1)((sinx+cosx)/(cosx-sinx)),"...

If `y=tan^(-1)((sinx+cosx)/(cosx-sinx))," then "(dy)/(dx)" at "x=(pi)/(4)`

A

`(1)/(2)`

B

0

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:

C

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