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Math Help - Show that

  1. #1
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    Show that

    Show that

    1*3^(1) + 2*3^(2) + ... + n*3^(n) = [(2n-1)*3^(n+1) + 3]/4

    for every positive integer n.
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  2. #2
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    Re: Show that

    Use mathematical induction.
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  3. #3
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    Re: Show that

    Ahh, got it, thanks. I followed the same pattern as an example and figured it out :P
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