The sum of coefficients in the expansion of { | vedclass

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Question

(c) Sum of the coefficients is obtained by putting $x = y = z = 1,$

so sum of the coefficients $ = {{\rm{(1 }} + {\rm{ 2 }} + {\rm{ 3)}}^{\rm{8}}}{

Vedclass · Accepted Answer

${6^8}$

Vedclass · Answer

(c) Sum of the coefficients is obtained by putting $x = y = z = 1,$

so sum of the coefficients $ = {{\rm{(1 }} + {\rm{ 2 }} + {\rm{ 3)}}^{\rm{8}}}{\rm{ }} = {\rm{ }}{{\rm{6}}^{\rm{8}}}$.

The sum of coefficients in the expansion of ${(x + 2y + 3z)^8}$ is

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