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Let R^+ be the set of all non-negativ...

Let `R^+` be the set of all non-negative real numbers. If `f: R^+\ ->R^+` and `g: R^+\ ->R^+` are defined as `f(x)=x^2` and `g(x)=+sqrt(x)` . Find `fog` and `gof` . Are they equal functions.

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