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Math Help - find sum of infinite geometric series

  1. #1
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    find sum of infinite geometric series

    nb
    Last edited by oceanmd; December 13th 2007 at 04:55 AM.
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  2. #2
    Bar0n janvdl's Avatar
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    Quote Originally Posted by oceanmd View Post
    find sum of infinite geometric series, if it has one
    Problem 1) 32,16,8,....
    Solution: r=1/2; Sum=64

    Problem 2) 3, 15, 75, .....
    solution: r=5, so it does not have a sum

    Thank you very much.
    Yes, seems fine.

    If |r| > 1 then a series does not converge.
    Last edited by janvdl; December 6th 2007 at 10:46 PM. Reason: Error...
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