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The value of the integral int0^pi 1/(a^2...

The value of the integral `int_0^pi 1/(a^2 - 2 a cos x + 1) dx (a lt 1)` is

A

`pi/(1 - a^2)`

B

`pi/(a^2 - 1)`

C

`(2pi)/(a^2 - 1)`

D

`(3pi)/4`

Text Solution

Verified by Experts

The correct Answer is:
A
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