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The value of the integral int0^(oo) log(...

The value of the integral `int_0^(oo) log(x+1/x) (dx)/(x^2 +1)` is

A

`pi log 2`

B

`2 log pi`

C

`4 log pi`

D

`pi^2 log 13`

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The correct Answer is:
A
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