The sum of coefficients of integral powers of x in the binomial expansion of (1-2 x)^50 is

Question

Accepted Answer

Correct answer: A. (a) (1 –2 x )^50= C0 – C1 2 x+ C2 (2 x )^2+ . . . . . + C50 (2 x )^50 (1+2 x)^50= C0 + C1 (2 x )+ C2 (2 x )^2+ . . . . . + C50 (2 x )^50 Put x = 1 ∴ 1+3^502 = C0 + C2(b)2 + . .

$The sum of coefficients of integral powers of x in the binomial expansion of (1 - 2 x)^{50} is$

Solution

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