Question

A universal set contains only sets A and B. If A∩B = Ø and A and B are not the empty set, then all of the following are true except

A)A and B are disjoint.
B)A is equal to B complement
C)A∪B={}
D)A is not a subset of B.

Answer 1

i think its C because AUB is the universal set

Answer 2

A,B and D are all true

Answer 3

Thank you

Answer 4

yw