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Find the sum to n terms of the following...

Find the sum to n terms of the following series :
2+5+14+41 + …

A

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

B

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

C

(3n+1)

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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