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Sum of the n terms of the series (3)/(1^...

Sum of the n terms of the series `(3)/(1^(2))+(5)/(1^(2)+2^(2))+(7)/(1^(2)+2^(2)+3^(3))+"......."` is

A

`(2n)/(n+1)`

B

`(4n)/(n+1)`

C

`(6n)/(n+1)`

D

`(9n)/(n+1)`

Text Solution

Verified by Experts

The correct Answer is:
A
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