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The term independent of a in the expansi...

The term independent of `a` in the expansion of `(1+sqrt(a)+1/(sqrt(a)-1))^(-30)i s` `^30 C_(20)` b. `0` c. `^30 C_(10)` d. none of these

A

`""^(30)C_(20)`

B

0

C

`""^(30)C_(5)`

D

None of these

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The correct Answer is:
B
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