Let X={1,2,3} and Y ={4,5}. Find whether the following subsets of X×Y are functions from X to Y or not.
(iii) h={(1,4),(2,5),(3,5)}
Given that, X ={1,2,3}and Y ={4,5}
X×Y=(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)
(iii) h={(1,4),(2,5),(3,5)}
It is clear that h is a funtion.