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Mathematics 15 Online
OpenStudy (anonymous):

[3.02] If A = {1, 2, 3, 4, 5, 6, 7, 8, 9} and B = {3, 6, 9, 12, 15, 18}, what is A B?

terenzreignz (terenzreignz):

I'm sure there must be a sign between A and B... does it look like a U? or maybe an upside-down U?

OpenStudy (ryan123345):

Union or Intercept?

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