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Math Help - g(f(x)) problem.

  1. #1
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    g(f(x)) problem.

    For all nonzero numbers, if f(x)= x^2 - 1/ x^2 + 1 and g(x)= 1/ x^2, then g(f(x))=
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  2. #2
    MHF Contributor Amer's Avatar
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    Quote Originally Posted by dnntau View Post
    For all nonzero numbers, if f(x)= x^2 - 1/ x^2 + 1 and g(x)= 1/ x^2, then g(f(x))=

    f(x) = x^2 - \frac{1}{x^2}

    g(x) = \frac{1}{x^2}

    just sub f(x) instead of x

    g(f(x)) = \frac{1}{(f(x))^2}
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  3. #3
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    Thank you.
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