a) Find f 0 g.and g 0 f together with their domains: f(x) = x3,x > 0 ; g(x) = b) Find f 0 g 0 h with its domain of denition: 1 f(x) = III4|; 90!?) = : ,h(x) = c) Find 9 so that y(t) = f 0 g(t) for the following function: t2+3 y(t)- t2+4 where t+5 (t): t+6