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Practice with Numbo

Day 4 Worksheet

Mock Exam 1: Sets Review

8 practice questions
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Practice Problems

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1 How do you write the set of English vowels in roster form?
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Answer {a, e, i, o, u}
2 What symbol represents the empty set?
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Answer ∅
3 If A = {1,2} and B = {1,2,3,4}, is A a subset of B?
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Answer Yes (A ⊆ B)
4 If A={1,2,3}, B={3,4,5}, what is A∪B?
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Answer {1,2,3,4,5}
5 If A={1,2,3}, B={3,4,5}, what is A∩B?
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Answer {3}
6 If A={2,4,6,8}, B={4,8,12}, what is A-B?
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Answer {2,6}
7 What type of set is the set of natural numbers?
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Answer Infinite set
8 What symbol are set members written inside?
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Answer Curly braces { }