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    kabraham's Avatar
    kabraham Posts: 11, Reputation: 1
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    #1

    Sep 10, 2008, 05:44 PM
    Identify Propositions in a Proof of Induction
    Which of the following is proposition P(5) for the sequence of propositions
    for all positive integers n?

    13+33 + 53 + …+(2n−1)3 = n2(2n2−1)
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Sep 11, 2008, 05:52 AM
    Sorry - I don't undersand your question. It looks like your trying to write a sequence, but the terms 13, 33, 53 etc are not equivalent to (2n-1)3. Also, on the right hand side is that meant to be

    ?
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