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int(-a)^(a)(1)/(a^(2)+x^(2))dx=...

`int_(-a)^(a)(1)/(a^(2)+x^(2))dx=`

A

`(pi a)/(2)`

B

`(pi)/(2a)`

C

`(pi)/(4a)`

D

`(pi)/(8a)`

Text Solution

Verified by Experts

The correct Answer is:
B
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