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Math Help - (fg)(x), (f(g(x)), etc.

  1. #1
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    (fg)(x), (f(g(x)), etc.

    All I'm having problems with is notation and whatnot.
    whereas f(g(x)) means I plug in g(x) into f(x) and la dee da....
    (fg)(x) means that I multiply f(x) and g(x), correct?
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  2. #2
    Super Member
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    Quote Originally Posted by MadHotThunder View Post
    All I'm having problems with is notation and whatnot.
    whereas f(g(x)) means I plug in g(x) into f(x) and la dee da....
    (fg)(x) means that I multiply f(x) and g(x), correct?
    Yes that is correct.

    But remember that:

     f \circ g(x)= f(g(x)) and not (fg)(x)
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