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Thread: Help with nth partial sum?

  1. #1 Help with nth partial sum? 
    Forum Freshman
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    Aug 2010
    Given some natural number n find the nth partial sum for:

    I find this question really difficult! If anyone could help, it would be greatly appreciated. Thanks in advance!

    Last edited by m84uily; December 22nd, 2011 at 04:29 PM.
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  3. #2  
    Ophiolater Nehushtan's Avatar
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    Feb 2013
    Let where for each with . Then:

    Hence .

    Not so much really difficult as really complicated.

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