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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

1

D

(-1)

Text Solution

Verified by Experts

The correct Answer is:
C
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