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Math Help - Find Functions (FoG)

  1. #1
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    Question Find Functions (FoG)

    Find functions f and g so that (fog)(x)=2/(6x+1)

    (6x+1) is all square rooted. I tried to enter alt251 for the square root symbol, but it didn't work.

    I am not sure what the question is asking and how to start the problem...
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  2. #2
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    Quote Originally Posted by RenSully View Post
    Find functions f and g so that (fog)(x)=2/(6x+1)

    (6x+1) is all square rooted. I tried to enter alt251 for the square root symbol, but it didn't work.

    I am not sure what the question is asking and how to start the problem...
    You can learn to use LaTex
    The code [tex]f \circ g(x) = \frac{2}{{\sqrt {6x + 1} }}[/tex] gives nice output: f \circ g(x) = \frac{2}{{\sqrt {6x + 1} }}.

    Let f (x) = \frac{2}{{\sqrt {x} }} and g(x) = {6x + 1} .
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  3. #3
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    what are the steps to get there?
    I understand (fog)(x) is f(g(x)). I can't find a similar example.
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  4. #4
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    Quote Originally Posted by RenSully View Post
    what are the steps to get there?
    I understand (fog)(x) is f(g(x)). I can't find a similar example.
    Actually there are no steps.
    It is a matter of understanding how functions work.
    It is a matter of practice.
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