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Math Help - problem of series

  1. #1
    kin
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    problem of series


    please explain how to obtain this result ????
    from "k(0.2)(0.8)^k-1" to ( 1/0.2).........
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  2. #2
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    Krizalid's Avatar
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    look for geometric series.
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  3. #3
    kin
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    Quote Originally Posted by Krizalid View Post
    look for geometric series.
    thx, i have got it............
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