The sum of coefficients in (1 + x - 3x^2)^{21 | vedclass

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(B) To find the sum of the coefficients of a polynomial $P(x)$,we substitute $x = 1$ into the expression.Given the expression $P(x) = (1 + x - 3x^2)^{

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$1$

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(B) To find the sum of the coefficients of a polynomial $P(x)$,we substitute $x = 1$ into the expression.Given the expression $P(x) = (1 + x - 3x^2)^{2134}$.Substituting $x = 1$:$P(1) = (1 + 1 - 3(1)^2)^{2134}$$P(1) = (1 + 1 - 3)^{2134}$$P(1) = (-1)^{2134}$Since $2134$ is an even number,$(-1)^{2134} = 1$.Therefore,the sum of the coefficients is $1$.

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

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