Question

Let A = {1, 2, 3} and B = {x | x is a prime number less than 10}. Find A × B and B × A.​

Answer 1

A = {1, 2, 3}, B = {2, 3, 5, 7} A x B = {(1, 2), (1, 3), (1, 5), (1, 7), (2, 2), (2, 3), (2, 5), (2, 7), (3, 2), (3, 3), (3, 5), (3, 7)} B x A = {(2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3), (5, 1), (5, 2), (5, 3), (7, 1), (7, 2) , (7, 3)}Read more on Sarthaks.com - https://www.sarthaks.com/932408/let-a-1-2-3-and-b-x-x-is-a-prime-number-less-than-10-find-a-x-b-and-b-x-a