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18 December, 13:28

What is the inverse of f (x) = x^2 + 5 and is it a function?

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  1. 18 December, 15:11
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    Step-by-step explanation:

    f-1 (x) =

    x=y^2+5

    y^2=x-5

    y=sqrt (x-5)

    f-1 (x) = + -sqrt (x-5)
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