Question

A relation R is defined from a set A={2,3,4,7} to a set B={3,6,9,10} as follows, R={x,y)€R: x is less than y , x €A, y€B}. express R as a set of ordered pairs and determine the domain and range​

Answer 1

R={(2,3),(2,6),(2,9),(2,10),(3,6),(3,9),(3,10),(4,6),(4,9),(4,10),(7,9),(7,10)

Domain = set of first element/set of x

={2,3,4,7}=A

Range= set of second elemnt /set of y

={3,6,9,10}=B