Find all sets (if any) with A - B = B. Justify your answer.
Added by Cassie S.
Step 1
So, if π΄ β π΅ = π΅, it means that all the elements in π΄ that are not in π΅ are exactly the same as the elements in π΅. Now, let's consider some examples: - If π΄ = {1, 2, 3} and π΅ = {2, 3}, then π΄ β π΅ = {1} and π΅ = {2, 3}. Since π΄ β π΅ is not equal to π΅, this set does Show moreβ¦
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