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Find the sum to n terms of the series 3+...

Find the sum to n terms of the series `3+6 + 10 + 16` + …

A

`(n(n-1))/2-1`

B

`n(n+1)+2^n-1`

C

n(n+2)+1

D

`3(2n+1)-2^n`

Text Solution

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The correct Answer is:
B
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