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The sum of n terms of the series 3+15+35...

The sum of n terms of the series 3+15+35+63….is

A

`(4n)/3(4n^2+6n-1)`

B

`(n)/3(4n^2+6n-1)`

C

`(4n)/3(6n^2+4n-1)`

D

`(n)/3(6n+4n^2-1)`

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The correct Answer is:
B
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