Say you get a problem like this:(adsbygoogle = window.adsbygoogle || []).push({});

Find f(x) and g(x) when f(g(x))=|sin(x)| and g(f(x))=sin^2(sqrt(x)),

and Domain_f=R, Domain_g=[0,-> >

How would you approach to solve this, or do you have to keep guessing until you find two functions that fits?

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# Finding unknown functions

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