The condition for two sets A and B to be disjoint is
A ∪ B = ∅
A ∩ B = ∅
A - B = ∅
B - A = ∅
If A and B are two sets such that A ∪ B= ∅, then A and B are disjoint sets.
The condition for two sets A and B to be disjoint is:
The condition for 2 sets A and B to be disjoint is
The condition for two sets A and B to be disjoint is________.