Question

Find the formula for f of g; (f(g(x)), and g of x; g(f(x))
f(x) = (1+x)/(1-x) and g(x) = x/(1-x)

Answer 1

1) For every x in F(x) plug in g(x).
(1+ (x/(1-x) )/ (1- (x/(1-x) )

2) For every x in g(x) plug in f(x).
( (1+x)/1-x) )/1- ( (1+x)/(1-x) )