Recent content by andy727

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    Power Series Calc 2: Determine 1/(1+9x)^2 From n=1 to ∞

    Homework Statement Determine the power series for g(x)=1/(1+9x)^2 The sigma in the answer has to be from n=1 to infinity We also have to specify whether it is alternating by putting either (1)^n or (-1)^n This is an online problem and I have no idea why what I am putting is not right...