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Math Help - Can someone check my work?

  1. #1
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    Can someone check my work?

    Nevermind
    Last edited by EdenM; August 6th 2009 at 07:41 PM.
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  2. #2
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    Quote Originally Posted by EdenM View Post
    If anyone can help me understand out to do this problem:

    Find a formula for the sum x^{k}+x^{k+1}+x^{k+2}+⋯+x^264

    It would be a huge help as I cant figure it out and its been days.

    Thanks
    It's equal to (1 + x + x^2 + .... + x^{264}) - (1 + x + x^2 + .... + x^{k-1}) and you have a geometric series in each bracket ....
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