Question

A = {1, 2, 3} and B = {x : x Î N, x is a prime number less then 5}, Find A × B and B × A.​

Answer 1

Step-by-step explanation:

B = { 2,3}

A× B = { 1,2,3} × { 2,3}

.= { (1,2),(1,3),(2,2),(2,3),(3,2),(3,3)}

B× A= { (2,1),(2,2),(2,3),(3,1),(3,2),(3,3)}