Diketahui himpunan semesta S = {x|x < 30, x Î A}. A = {faktor dari 24}, B = {bilangan asli kelipatan 3 yang kurang dari 30}, maka pernyataan di bawah ini yang benar adalah ....
A. A irisan B = {3, 6, 12, 15, 24}
B. A union B = {1, 2, 3, 4, 6, 12, 24}
C. (A union B)’ = {5, 7, 8, 10, 11, 13, 14, 16, 17, 20}
D. A - B = {1, 2, 4, 8}
HanaTY
Jawabannya D A-B = {1,2,4,8} A = {1,2,3,4,6,8,9,12,24} B = {3,6,9,12,15,18,21,24,27}
A-B = {1,2,4,8}
A = {1,2,3,4,6,8,9,12,24}
B = {3,6,9,12,15,18,21,24,27}