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If n is ann integer greater than 1, then...

If n is ann integer greater than 1, then
`a-^(n)C_(1)(a-1)+.^(n)C_(2)(a-2)- . . .+(-1)^(n)(a-n)=`

A

a

B

0

C

`a^(2)`

D

`2^(n)`

Text Solution

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The correct Answer is:
b
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Knowledge Check

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