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The value of ^1P1+2cdot"^2P2+3cdot^3P3+....

The value of `^1P_1+2cdot"^2P_2+3cdot^3P_3+....+ncdot^nP_n` is

A

`^(n+1)P_(n+1)=1`

B

`^(n+1)P_(n+1)`

C

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

D

None of these

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The correct Answer is:
A
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