Binomial TheoremMedium

Question

If the sum of the coefficients in the expansion of (1 − 3x + 10x2)n is a and if the sum of the coefficients in the expansion of (1 + x2)n  is b, then -

Options

A.a + 3b
B.a + b3
C.b = a3
D.None of these

Solution

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