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The interval in which x must lie so that...

The interval in which x must lie so that greatest term in the expansion of `(1+x)^(2n)` has the greatest coefficient is

A

`((n-1)/n, n/(n-1))`

B

`(n/(n+1), (n+1)/n)`

C

`(n/(n+2), (n+2)/n)`

D

None of these

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The correct Answer is:
B
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