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int(0)^(oo) (x)/((1+x)(1+x^(2)))dx=...

`int_(0)^(oo) (x)/((1+x)(1+x^(2)))dx=`

A

`pi/4`

B

`pi`

C

`pi/2`

D

`2pi`

Text Solution

Verified by Experts

The correct Answer is:
A
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