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14 March, 19:15

Confirm that f and g are inverses by showing that f (g (x)) = x and g (f (x)) = x where: f (x) = 3x-2 and g (x) = (x+2) / 3

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  1. 14 March, 23:13
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    F (g (x) = 3 [ (x+2) / 3]-2

    =x+2-2

    =x

    g (f (x) = [ (3x-2) + 2]/3

    =3x/3

    =x

    f and g are inverses
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