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Math Help - Interval of Convergence Problem

  1. #1
    JRH
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    Interval of Convergence Problem

    How do i find the interval of convergence for the summation of 1 to infinity for (x+2)N/N3 ?
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  2. #2
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    Re: Interval of Convergence Problem

    Use the ratio test. The n+1 term divided by the nth term.
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  3. #3
    JRH
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    Re: Interval of Convergence Problem

    Thanks, I've done that and gotten (X+2). How do I use that to determine the interval of convergence?
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    Re: Interval of Convergence Problem

    Quote Originally Posted by JRH View Post
    Thanks, I've done that and gotten (X+2). How do I use that to determine the interval of convergence?
    Can you solve |x+2|<1~?
    Be sure to test the endpoints!
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