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If f(x)=(x-2)(x-4)(x-6)...(x-2n), then f...

If `f(x)=(x-2)(x-4)(x-6)...(x-2n),` then `f'(2)` is -

A

`(-1)^(n)2^(n-1)(n-1)!`

B

`(-2)^(n-1)(n-1)!`

C

`(-2)^(n)n!`

D

`(-1)^(n-1)2^(n)(n-1)!`

Text Solution

Verified by Experts

The correct Answer is:
B
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