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Mathematics, 29.01.2021 18:10 victoriagreeneov7l9o
1. Is the set closed or not closed under the operation?
integers under addition
2. Is the set closed or not closed under the operation?
positive integers under multiplication
3. Is the set closed or not closed under the operation?
negative integers under multiplication
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Answers: 2
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1. Is the set closed or not closed under the operation?
integers under addition
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