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Mathematics 7 Online
OpenStudy (anonymous):

Find A ∩ B if A = {3, 6, 9, 12} and B = {2, 4, 6, 8, 10, 12}

OpenStudy (mathstudent55):

The intersection of two sets is a set containing all the elements the two set have in common. Only include elements you see in both set A and set B.

OpenStudy (anonymous):

2,3,4,5,6,7,8,9,10,11,12

OpenStudy (mathstudent55):

No, that's the union of the sets. The question is the intersection.

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