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Math Help - Find a sum using Method of Differences

  1. #1
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    Find a sum using Method of Differences

    Hi, I need to find the summation of the series: (i+3)/[(i+1)(i+2)]*(1/2)^i from i=1 to ∞. I'm not sure how to find f(i). Any help would be appreciated. Thanks
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  2. #2
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    Re: Find a sum using Method of Differences

    Find a sum using Method of Differences-27-may-13-1.png
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  3. #3
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    Re: Find a sum using Method of Differences

    I tried finding the partial fraction, and I tried separating the 2^i from the other term, but they didn't work. I have no idea how to work backwards for this question in order to get f(i).
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