Question 1185852
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"f g" and "g f" are not standard notation; we don't know what those function are.<br>
(f*g)(x) and (g*f)(x)?
(f(g(x)) and g(f(x))?
or even
(f+g)(x) and (g+f(x)
etc., etc....<br>
Re-post so we know what the problem is.<br>