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Thread: Positive integer n question help please

  1. May 9th 2009, 04:01 AM #1
    Khonics89
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    Positive integer n question help please

    prove that.

    where nCk = combintions.....
    Last edited by Khonics89; May 22nd 2009 at 08:19 PM.
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  2. May 9th 2009, 04:14 AM #2
    bobby
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    \sum_{k=0}^{n} nC_k*k^{(n-k)} * (n-k)^k \leq \frac{1}{2} *n^n


    prove that.

    where nC_k = combinations.....


    Just trying my latex skills out, but is that what you mean? This may help others out if it is right.
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