Find the sum of the series 2/(1xx3)+5/(2...

Find the sum of the series `2/(1xx3)+5/(2xx3)xx2+(10)/(3xx4)xx2^2+(17)/(4xx5)xx2^3+ ton` terms.

A

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

B

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

C

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

D

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

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The correct Answer is:

C

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