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5 November, 22:30

If ƒ (x) = 2x, then ƒ - 1 (x) =

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  1. 5 November, 23:52
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    Swap the variables to find the inverse function

    y = 2x

    becomes ...

    x = 2y

    y = (1/2) x

    f-1 (x) = 0.5x
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