Math Help Forum: Sum of a series using partial fractions.

  1. December 5th, 2010, 02:12 PM #1
    elpermic
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    Sum of a series using partial fractions.

    (a) Express the function as the sum of a power series by first using partial fractions.


    Well I ended up getting the entire problem wrong. I still don't know the series notation or the interval of convergence.
    Last edited by mr fantastic; December 6th, 2010 at 03:42 AM. Reason: Re-titled.
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  3. December 5th, 2010, 02:31 PM #2
    pickslides
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    Post your working...
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  4. December 5th, 2010, 02:50 PM #3
    TheCoffeeMachine
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    Quote Originally Posted by elpermic View Post
    Well I ended up getting the entire problem wrong. I still don't know the series notation or the interval of convergence.
    Well, express it as partial fractions, by noting that 10 = (x+1)-(x-9) , or otherwise.

    Then you'll need to use \displaystyle \frac{1}{1-t} = \sum_{n \ge 0}t^n for |t| < 1.
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  5. December 5th, 2010, 05:18 PM #4
    elpermic
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  6. December 6th, 2010, 03:44 AM #5
    mr fantastic
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    Quote Originally Posted by elpermic View Post
    This is not what is meant by "Post your working". In fact, this question looks like part of an on-line assignment. Please read fourm rule #6.

    Thread closed.
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