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Math Help - How to solve function

  1. #1
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    How to solve function

    I wonder if this is true or false, and how to proof it?

    If f(x,u)=k(c) when u=cx, then f(x,u) can also be written as f(x,u)=h(u/x).

    Thanks very much for the help!
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  2. #2
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    Quote Originally Posted by WangTaoSG
    I wonder if this is true or false, and how to proof it?

    If f(x,u)=k(c) when u=cx, then f(x,u) can also be written as f(x,u)=h(u/x).

    Thanks very much for the help!
    It's true, and no proof needed. It's simply a variable substitution.

    -Dan
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