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Questions  

The sum of the coefficients in the expansion of (x+y)n is 4096. The greatest coefficient in the expansion is

a
1024
b
924
c
824
d
724

detailed solution

Correct option is B

Given that the sum of the binomial coefficients of x+yn is 4096    hence, 2n=4096     it gives n =12     the greatest coefficient is C(12,6)=12!6!6!=924

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