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Let f(x)=x/x-7. Find a function y=g(x) so that (fg)(x)=x

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Let f(x)=x/x-7. Find a function y=g(x) so that...

Let f(x)= x/x-7 that should help you find y=g(x)

function of x

asked Jan 26, 2012 in Calculus Answers by anonymous

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1 Answer

(fg)(x) = x
f(x) g(x) = x
(x / (x - 7)) g(x) = x
g(x) = x / (x / (x - 7))
g(x) = x - 7

answered Jan 26, 2012 by anonymous

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