Q.If the sum of the coefficients in the expansion of $(1 + 2x + 3x^2 + \cdots + (n+1)x^n)^n$ is 100, then $n$ is

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.If the sum of the coefficients in the expansion of (1+2x+3x2+⋯+(n+1)xn)n(1 + 2x + 3x^2 + \cdots + (n+1)x^n)^n(1+2x+3x2+⋯+(n+1)xn)n is 100, then nnn is