bagaimana canya mengerjakan soal no.8 di atas

S = {0,1,2,3,4,5,6,7,8,9}
A = {1,3,5,7}
B = {1,2,3,4}
C = {2,3,5,8}
A irisan (B U C)
= {1,3,5,7} irisan ({1,2,3,4} U {2,3,5,8})
= {1,3,5,7} irisan {1,2,3,4,5,8}
= {1,3,5} (B)