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9 July, 20:08

Let f (x) = 10x-10 find the value of (fof^-1) (-10)

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  1. 9 July, 20:24
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    (f o f^-1 (10)) = 10

    Step-by-step explanation:

    f ^ - 1 = (x + 10) / 10

    from solving from f (x) = 10x - 10

    since 10x - 10 is a one-to-one function it has an inverse

    so f o f^-1 (x) = x

    (f o f^-1 (10)) = 10
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