![Example 9 - Chapter 2 Class 11 Relations and Functions - Part 2](https://d1avenlh0i1xmr.cloudfront.net/1be0adc2-13ac-4fbd-a7f0-c38e89ec3bf1/slide18.jpg)
Example 9
Let A = {1, 2} and B = {3, 4}. Find the number of relations from A to B.
Given A = {1,2} & B = {3,4}
Number of relations from A to B = 2Number of elements in A × B
= 2Number of elements in set A × Number of elements in set B
= 2n(A) × n(B)
Number of elements in set A = 2
Number of elements in set B = 2
Number of relations from A to B = 2n(A) × n(B)
= 22 × 2