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Coefficient of x^50 in (1+x)^(1000)+2x(1...

Coefficient of `x^50` in `(1+x)^(1000)+2x(1+x)^(999)+3x^2(1+x)^(998)+....+1001x^(1000)` is

A

`^(1001)C_50`

B

`^(1000)C_50`

C

`^(1002)C_50`

D

`^(1002)C_51`

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The correct Answer is:
C
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PATHFINDER-BINOMIAL THEOREM-QUESTION BANK
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