Recent content by potentenum

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    Closed form expression for f(x) = sigma (n = 1 to infinity) for x^n / [n(n+1)]

    Homework Statement Consider the power series. sigma (n=1 to infinity) x^n / [n(n+1)] if f(x) = sigma x^n / [n(n+1)], then compute a closed-form expression for f(x). It says: "Hint: let g(x) = x * f(x) and compute g''(x). Integrate this twice to get back to g(x) and hence derive...