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If a1, a2 are the coefficients of x^n in...

If `a_1, a_2` are the coefficients of `x^n` in the expansion of `(1+x)^(2n)` & `(1+x)^(2n-1)` respectively then `a_1:a_2` will be

A

2:1

B

1:2

C

1:1

D

1:3

Text Solution

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The correct Answer is:
A
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