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Find the middle term in the expansion of...

Find the middle term in the expansion of `(x^2+1/(x^2)+2^n)dot`

A

`((2n)!)/((n!)^(2))`

B

`(2^(n)(1.3.5.....(2n-1)))/(n!)`

C

`((2n+1)!)/(n^(2))`

D

`2n!`

Text Solution

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The correct Answer is:
A, B
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