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Mathematics 16 Online
OpenStudy (anonymous):

Which of the following sets is closed under multiplication? A. {0, 1} B. {1, 2} C. {0, 1, 2} D. None of the sets are closed under multiplication.

OpenStudy (cbarredo1):

I'm not sure, but I think D

jimthompson5910 (jim_thompson5910):

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jimthompson5910 (jim_thompson5910):

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