Which one of the following represents the commutative property?
- A ∪ B = B ∪ A
- A ∪ B = A ∪ B
- A ∩ B = A ∩ B
- None of these
Explanation
Commutative property means the order doesn’t matter: 𝐴 ∗ 𝐵 = 𝐵 ∗ 𝐴.
Union ∪ is commutative, so 𝐴 ∪ 𝐵 = 𝐵 ∪ 𝐴.
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