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The coefficient of x^n in (1+x)^(101)(1-...

The coefficient of `x^n` in `(1+x)^(101)(1-x+x^2)^(100)` is non zero, then `n` cannot be of the form a. `3r+1` b. `3r` c. `3r+2` d. none of these

A

`3x+1`

B

`3r`

C

`3x+2`

D

None of these

Text Solution

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The correct Answer is:
C
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