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let-give-s-x-n-1-nx-n-and-w-x-n-1-1-n-x-n-1-for-x-lt-1-find-s-x-w-x-at-form-of-series-2-find-s-x-w-x-at-form-of-function-

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Question Number 30407 by abdo imad last updated on 22/Feb/18
let give s(x)= Σ_(n=1) ^∞ nx^n and w(x)=Σ_(n=1) ^∞ (1/n)x^(n−1) for∣x∣<1 find s(x).w(x) at form of series 2) find s(x).w(x) at form of function.
letgives(x)=∑n=1∞nxnandw(x)=∑n=1∞1nxn−1for∣x∣<1finds(x).w(x)atformofseries2)finds(x).w(x)atformoffunction.

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