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Math Help - A simple proof...

  1. #1
    Newbie
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    Nov 2009
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    A simple proof...

    I need to proof that (n+1)^n >= 2*n^n

    it's emberassing, but I just don't see how
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  2. #2
    Senior Member I-Think's Avatar
    Joined
    Apr 2009
    Posts
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    (n+1)^n\geq2n^n

    Use induction
    Test n=1
    It is true.

    Assume true for n=k
    (k+1)^k\geq2k^k

    Test n=k+1

    You should arrive at the answer.
    Reply if you're still having trouble.
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