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If the sum of the coefficients in the ex...

If the sum of the coefficients in the expansion of `(1-3x+10 x^2)i sa` and if the sum of the coefficients in the expansion of `(1+x^2)^ni sb ,` then `a=3b` b. `a=b^3` c. `b=a^3` d. none of these

A

A=3B

B

`A=B^(3)`

C

`B=A^(3)`

D

none of these

Text Solution

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The correct Answer is:
b
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