quiz3b - 2 Determine whether these statements are true or...

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Math 240, Quiz 3 Name: Circle One: T 12:05 T 2:25 R 12:05 R 2:25 Instructions: Answer all questions fully, showing work where necessary. 1) Prove that if x is rational and x n = 0, then 1 /x is rational.
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Unformatted text preview: 2) Determine whether these statements are true or false (and justify your conclusion). a) ∅ ∈ {∅ , {∅}} b) {∅} ∈ {∅} c) {{∅}} ⊆ {∅ , {∅}} 1...
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