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The value of the sum 1/(3^2+1)+1/(4^2+2)...

The value of the sum `1/(3^2+1)+1/(4^2+2)+1/(5^2+3)+...oo` is equal to

A

`13/36`

B

`12/36`

C

`15/36`

D

`18/36`

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The correct Answer is:
A
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