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21 October, 19:22

A Find the inverse of (x) = 3^x

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  1. 21 October, 19:43
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    Find inverse steps

    replace f (x) with y

    switch all x and y

    solve for y

    replace y with f⁻¹ (x) or read as 'f inverse'

    f (x) = 3^x

    y=3^x

    x=3^y

    take log₃ of both sides

    log₃x=log₃3^y

    remember, logₐa^ˣ=x

    log₃x=y

    y=log₃x

    f⁻¹ (x) = log₃x
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