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21 October, 09:00

Find the following function. f (g (x)) if f (x) = x / (x-7) and g (x) = 4/x

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  1. 21 October, 09:44
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    F (g (x)) = f (4/x) = (4/x) / (4/x - 7) = (4/x) / ((4 - 7x) / x) = 4/x * x / (4 - 7x) = 4 / (4 - 7x)
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