7.Binomial Theorem
easy

The sum of coefficients in ${(1 + x - 3{x^2})^{2134}}$ is

A

$-1$

B

$1$

C

$0$

D

${2^{2134}}$

Solution

(b) For, the sum of coefficients, put $x = 1$, to obtain the sum as ${(1 + 1 – 3)^{2134}} = 1$.

Standard 11
Mathematics

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