int(-log 3)^(log 3) cot^(-1) ((e^(x)-1)/...

`int_(-log 3)^(log 3) cot^(-1) ((e^(x)-1)/(e^(x)+1))dx`= ____

A

`(pi)/(2)log 3`

B

`pi log 3`

C

0

D

`pi log 9`

Verified by Experts

The correct Answer is:

B

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