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Let n be a positive even integer. The ra...

Let n be a positive even integer. The ratio of the largest coefficient and the `2^(th)` largest coefficient in the expansion of `(1+x)^n` is 11 : 10. Then the number of terms in the expansion of `(1+X)^n` is

A

20

B

21

C

10

D

11

Text Solution

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The correct Answer is:
B
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