int(-pi)^(pi)(2x(1+sinx))/(1+cos^(2)x)dx...

`int_(-pi)^(pi)(2x(1+sinx))/(1+cos^(2)x)dx` is equal to

A

`(pi^(2))/(4)`

B

`pi^(2)`

C

zero

D

`pi/2`

Verified by Experts

The correct Answer is:

B

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