Question

Va rog frumos ex.30 si 31.Dau coroana!

Answer 1

A∩B={2,3,4,6,7}
A∩C={2,3,4,7}
B∩C=2,3,4,5,7,8}
A∪B∪C={0,1,2,3,4,5,6,7,8,9}
ii A-B={1}
A-C={1,6}
B-A={5,8}
C-A={0,5,8,9}
C-B={5,9}
iii.(B∩A)-(A∩C)={6}
(C-B)∪(A-B)={1,5,9}
31. A= {2,4}
      B={1,3}