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The sum of the n terms of the series 1...

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

A

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

B

`1`

C

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

D

`1+2^(-n)`

Text Solution

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The correct Answer is:
C
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