Question

va rog repede am nevoie c d ex11

Answer 1

A={1'2'3'4'5'6'7'8}   B={1,2,3,4,5,6,7,8,9,0}    C={1,2,3}
A∪B={0,1,2,3,4,5,6,7,8,9} 
A∪C={1,2,3,4,5,6,7,8}
B∪C={0,1,2,3,4,5,6,7,8,9}
A∩B={1,2,3,4,5,6,7,8}
A∩C={1,2,3}
A∩B∩C={1,2,3}
C∪(A∩B)=C∪{1,2,3,4,5,6,7,8}={1,2,3,4,5,6,7,8}