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Math Help - [SOLVED] prove/disprove (composition is commutative)

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    [SOLVED] prove/disprove (composition is commutative)

    Prove or disprove the following statement: Function composition is commutative; that is, if
    f : R --> R and g : R --> R,

    then (
    f o g)(x) = (g o f)(x) for all x in R.




    all the R are real numbers. i just don't know how to get the doubled bar R
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  2. #2
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    Quote Originally Posted by jconfer View Post
    Prove or disprove the following statement: Function composition is commutative; that is, if
    f : R --> R and g : R --> R,

    then (
    f o g)(x) = (g o f)(x) for all x in R.




    all the R are real numbers. i just don't know how to get the doubled bar R
    Think about these: f(x) = x^2 \,\& \,g(x) = \sin (x).
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