Recent content by daniel0816

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    Sum of Series: f(x)= 1/((4+x)^2) and n*(3/8)^n using Power Series Representation

    Thank you, again! I actually got a chance to read your post before my exam, and was able to do the question that was similar to this one on it.
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    Sum of Series: f(x)= 1/((4+x)^2) and n*(3/8)^n using Power Series Representation

    thank you so much for your help! I have a final today and this type of problem confuses me so much. I couldn't figure it out, but I at least got a little closer to the answer. I made the correction you pointed out about the negative sign. Then I was able to use your hint to get the series to...
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    Sum of Series: f(x)= 1/((4+x)^2) and n*(3/8)^n using Power Series Representation

    Homework Statement Find the power series representation of f(x)= 1/((4+x)^2). Use this representation to determine the sum of the series: sum [1, infinity) of n*(3/8)^n. I attached a screenshot of the problem for just in case. Homework Equations The Attempt at a Solution What I...
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