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Thread: converges absolutely, conditionlly, or diverges??

  1. May 5th 2009, 04:31 PM #1
    tiga killa
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    converges absolutely, conditionlly, or diverges??

    Summation from 1 to infinity of (Sin n)/(n^2)


    please help me
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  2. May 5th 2009, 04:33 PM #2
    skeeter
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    Quote Originally Posted by tiga killa View Post
    Summation from 1 to infinity of (Sin n)/(n^2)


    please help me
    term for term ...

    \left|\frac{\sin(n)}{n^2}\right| \le \frac{1}{n^2}

    what's that tell you?
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