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At x=(pi)/(4),(d)/(dx)[tan^(-1)((cosx)/(...

At `x=(pi)/(4),(d)/(dx)[tan^(-1)((cosx)/(1+sinx))]=`

A

`-(1)/(2)`

B

`(1)/(2)`

C

1

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
A
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