tolong dibantu buat besok

3.)
A={1,2,3,4}
B={0,1,2,3}
C={5,10,15,20,25}

4.)
A={0,1,2,3,4,5,6,7}
a.(BcA)=(AnB)
jadi, himpunan B={1,2,3}
b.(AuB)={0,1,2,3,4,5,6,7}u{1,2,3}
={0,1,2,3,4,5,6,7}
c.(A-B)={0,1,2,3,4,5,6,7}-{1,2,3}
={0,4,5,6,7}
d.(B-A)={1,2,3}-{0,1,2,3,4,5,6,7}
= -

maaf kalo sala