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Thread: another simplifying problem

  1. June 4th 2009, 01:14 PM #1
    Gul
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    another simplifying problem

    If I have:

    -> (n-r-1)!(n-r+1)!

    -> (n-r+1) (n-r) [(n-r-1)!]^2

    would that be right?
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  2. June 4th 2009, 01:16 PM #2
    Plato
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    Quote Originally Posted by Gul View Post
    If I have:
    (n-r-1)!(n-r+1)! = (n-r+1) (n-r) [(n-r-1)!]^2
    would that be right?
    Yes.
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