Pre-calculus-check answers

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If f(x)=4x^2 and g(x)=2/x, find [g x f](x).

Answer: -1/2x^2

2) Are f(x)=1/2x+5 and g(x)=2x-5 inverses of each other?

Answer: no

  • Pre-calculus-check answers -

    I am not familiar with the notation [g x f](x)

    2) is correct

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