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07-02-2017
Mathematics

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Verify if 1/2x-2 and g(x) = 2x + 4 are inverses

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07-02-2017

they are inverses if f( (g(x)) = x

f((g(x)) = (1/2) (2x + 4) - 2 = x + 2 - 2 = x

so this proves that g(x) is the inverse of f(x)

the other inverse g((f(x)) should also be = x

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