The number of terms in the expansion of ...

The number of terms in the expansion of `(x^2+1+1/x^2)^n, n in N` , is:

A

`""^(n+2)C_(2)`

B

`""^(n+3)C_(2)`

C

`""^(2n+1)C_(2n)`

D

`""^(3n+1)C_(3n)`

Verified by Experts

The correct Answer is:

a

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