माना A = {1, 2, 3, 4} तथा B = {5, 7, 9} ज्ञात कीजिए :
`A xx B`

Answer

{(5, 1), (5, 2), (5, 3), (5, 4), (7, 1), (7, 2), (7, 3), (7, 4), (9, 1), (9, 2), (9, 3), (9,4)}