Question

£(2= (1,5),(0,-2)，(3,2)}

g (2) = {(-1,3), (2, 7) , (5,0)}
h (2) ={(-2,5) , (4, -1) , (4, 0)}
Find (f•g•h) (4)

Answer 1

2

Explanation:

h(4)=-1

g(h(4))=g(-1)=3

f(3)=2