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The value of S= Sigma(n=1)^(oo)"tan"^(-1...

The value of `S= Sigma_(n=1)^(oo)"tan"^(-1) (2n)/(n^(4) + n^(2) +2)` is equal to

A

`(pi)/(2)`

B

`pi`

C

`(pi)/(4)`

D

None of these

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Verified by Experts

The correct Answer is:
C
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