Video solusi : Jika A={p, u, n, k} dan B={1,2} maka himpunan A x B=... .
a. {(p, 1),(u, 1),(n, 1),(k, 1)}
b. {(p, 1),(u, 1),(n, 1),(k, 1),(p, 2),(u, 2) , (n, 2),(k, 2)}
c. {(p, 2),(u, 2),(n, 2),(k, 2)}
d. {(p, 1),(u, 1),(n, 1),(k, 1),(p, 2),(u, 2),(n, 2)}