Diketahui A = {a, b, c, d, e, f, g}, B = {f, g, h, i, j,

Diketahui A = {a, b, c, d, e, f, g}, B = {f, g, h, i, j, k}, C = {d, e, g, j, k, I, m, n}, dan S = {a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p}. Tentukan: a. A U B b. B U C c. A U B U C