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The coefficient of x20 in the expansion ...

The coefficient of x20 in the expansion of `(1+x^(2))^(40)*(x^(2)+2+1/x^(2))^(-5)` is :

A

`""^(10)C_(5)`

B

`""^(15)C_(5)`

C

0

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
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