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Math Help - Radius of convergence; Interval of convergence.

  1. #1
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    Question Radius of convergence; Interval of convergence.

    I need to find the interval and radius of convergence of the power series.
    I forgot which steps I should take to solve this, Any & all help is appreciated!


    ((-1^n)*(x^n)) / ((n+1)(n+2))
    n=1
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  2. #2
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    May 2010
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    Just for the record, this is not homework, it is part of the review for my final exam (which is in 2 hours!) D:
    It can be found at this address, in case you doubt me.
    My web Page

    If you know how to solve this, I have a question:
    How do you know which values to test out for convergence (in order to find the interval)?
    Is this just a random test, or are there steps to take to figure out possible values in the interval?
    Thanks in advance!
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