int(-2)^(2) [cot^(-1) ((x-1)/(x+1)) + co...

`int_(-2)^(2) [cot^(-1) ((x-1)/(x+1)) + cot^(-1) ((x+1)/(x-1))] dx =`

A

`(5pi)/2`

B

`pi`

C

`pi/2`

D

`2pi`

Text Solution

Verified by Experts

The correct Answer is:

D

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