Solve: tan^(-1)((cosx-sinx)/(cosx+sinx...

Solve:
`tan^(-1)((cosx-sinx)/(cosx+sinx))`

A

(a) `(pi)/(2)-x`

B

(b) `(pi)/(4)-x`

C

(c) `(pi)/(2)`

D

(d) `(pi)/(4)`

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The correct Answer is:

B

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