tolong di pakein cara yh

A = {1, 2, 4, 6, 7, 8, 9}
B = {2, 3, 5, 7, 8, 10}
S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
A - B = anggota himpunan A yg tidak ada pada himpunan B
A - B = {1, 4, 6, 9}

Diket=
A={1,2,4,6,7,8,9}
B={2,3,5,7,8,10}

A-B={1,46,9}