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21 May, 07:38

Sabendo que f (g (x)) = 3x-7 e f (x) = 1/3x2, então

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  1. 21 May, 08:40
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    Hello:

    find : g (x) if f (g (x)) = 3x-7 and f (x) = 1/3x2

    f (g (x)) = 1/3 (g (x)) 2 = 3x-7

    solve : 1/3 (g (x)) 2 = 3x-7

    (g (x)) 2 = 9x-21

    g (x) = √ (9x-21)
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