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Math Help - Prove By Induction (Sigma Style)

  1. #1
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    Prove By Induction (Sigma Style)

    \sum_{i = 1}^n i^3 = \frac{n^2(n+ 1)^2}{4}?
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  2. #2
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    This is such a standard problem; you will find it worked on the web.
    Have you done a web search?
    It is pointless to recreate the wheel.
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  3. #3
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    Can you show your working so far?
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