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I made the same mistake speed reading the question. {1,2,3,4,5,6,7,8} is the union of both sets BUT the question is how many elements are in the union.
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Basics of Sets and Relations #1
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I made the same mistake speed reading the question. {1,2,3,4,5,6,7,8} is the union of both sets BUT the question is how many elements are in the union.