Let f be a function such that f(x)<1 and f '(x)<0 for all x
a) Suppose that f(b)=0 and a
b) determine whether g(x)= 1/ [f(x)-1] is increasing or decreasing. Justify your answer.
c) Let h be a differentiable function such that h'(x)< 0 for all x. Determine whether F(x)= h ( f(x) ) is increasing or decreasing. Justiify