Posted by Sara on Sunday, January 15, 2012 at 4:25pm.
I will assume f(x) = 6/(1-x) f(g(x)) = f(1 - 6/x) = 6/(1 - (1 - 6/x) = 6/(1-1+6/x) = 6/(6/x) = 6(x/6) = x
these are hard to do - thank you