from discerete mathematicas with applications, please give some specific logic steps.

1. The composition of two functions f, g is defined as follows. If : X Y and g : Y Z are Z is defined and is given functions, then the composition of f and g, written as gf : X by (g f)(x) = g(f(x)) Letf: X Y.g : Y- Z,h : ZWbe functions. Show that