Tolong di bantu ya..bsk di kumpulinn…mkshh

Keliatan kan? Smoga bnar 🙂

(gambar diagram venn)

S = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
A = {2,3,4,5,6,7,8,9}
B = {2,3,5,7,11,13}

b.) A – B = {4,6,8,9}
n (A – B) = 4
c.) B – A = {11, 13}
n (A – B) = 2