bagaimna sih caranya.........tolong dibantu jawab ya??????

no.3

himpunan semesta :
S = {1,2,3,4,5,6,7,8,9,10}
himpunan A :
A = {1,2,3,4}
himpunan B :
B = {2,3,5,7,9}
himpunan C :
C = {2,4,5,6,7}

a.
1) A U B
= 1,2,3,4,5,7,9
2) A U C
= 1,2,3,4,5,6,7
3)B U C
=2,3,4,5,6,7,9
4)A U B U C
=1,2,3,4,5,6,7,9

semoga membantu yaaa