1 + 3 + 7 + 15 + 31 + ...... + to n term...

1 + 3 + 7 + 15 + 31 + ...... + to n terms

A

`2^(n+1) -n`

B

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

C

`2^n - n-2`

D

None of these

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The correct Answer is:

B

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