Question

determine (A×B) intersection (B×A) ,given A={1,2,3} and B={a,b}.​

Answer 1

Answer:

A={1,2,3}

B={a,b}

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

{(1,a),(3,b),(2,a,)(2,b)}⊂A×B

{(1,b),(2,a),(3,a)}⊂A×B

{(1,a),(2,b)}⊂A×B