Diketahui A ={6,7,8,9} dan B ={1,2,3} tentukan himpunan pasangan berurutan

R = { (6, 1), (6, 2), (6, 3), (7, 1), (7, 2), (7, 3), (8, 1), (8, 2), (8, 3), (9, 1), (9, 2), (9, 3) }