Mathematics · Set Theory
For the sets A = {5n : n ∈ &mathbb;N}, B = {7n : n ∈ &mathbb;N} and C = {35n : n ∈ &mathbb;N}, which one of the following options is true?
- 1(A ∩ B) - C = ∅✓
- 2(A - B) ∪ C = ∅
- 3(A ∪ B) ∩ C = ∅
- 4(A ∩ B) ∪ C = ∅
Correct answer
(A ∩ B) - C = ∅
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