Mathematics for IGCSE & O level - Sets (Section 2 - No. 50)
If A = {1, 3, 5} and B = {2, 4, 6}, which of the following correctly describes A and B?
A ⊆ B
A ⊇ B
A and B are disjoint sets.
A = B
Vysvětlení
A and B have no elements in common, therefore they are disjoint sets.