The sum of the first n terms of the seri...

The sum of the first n terms of the series `1/2 +3/4 +7/8 +(15)/(16)+… is `

A

`2^n -n -1`

B

`1-2^(-2)`

C

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

D

`2^n -1`

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Verified by Experts

The correct Answer is:

C

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