Video solusi : a. Carilah formula untuk (f o g)(x) dan (g o f)(x) , apabila: f(x)=/ll0 jika x<0 2 x jika 0 <= x <= 1 0 jika x>1. g(x)=/l1 jika x<0 1/2 x jika 0 <= x <= 1 1 jika x>1. b. Hitunglah:(i) (f o g)(2) (iii) (g o f)(1) (ii) (g o f)(2) (iv) (f o g)(1)