Value of overset(n)underset(r=1)Sigma (-...

Value of `overset(n)underset(r=1)Sigma (-1)^(r+1).(""^(n)C_(r))/(r+1)` is equal to

A

`-(1)/(n+1)`

B

`-(1)/(n)`

C

`(1)/(n+1)`

D

`(n)/(n+1)`

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The correct Answer is:

D

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