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If C(0), C(1), C(2),..., C(n) denote the...

If `C_(0), C_(1), C_(2),..., C_(n)` denote the binomial
coefficients in the expansion of `(1 + x)^(n)` , then .
`1. C_(1) - 2 . C_(2) + 3.C_(3) - 4. C_(4) + ...+ (-1)^(n-1) nC_(n)=`

A

`-1`

B

1

C

0

D

None of these

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