Series ^nC1+2cdot^nC2+3cdot^nC3+…+ncdot^...

Series `^nC_1+2cdot^nC_2+3cdot^nC_3+…+ncdot^nC_n` is equal to

A

`n2^(n-1)`

B

`2^(n-1)`

C

`n2^n`

D

`2^(3-1)`

Text Solution

Verified by Experts

The correct Answer is:

A

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