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anonymous
 one year ago
help plzzz!
anonymous
 one year ago
help plzzz!

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2set \(A \cup B\) is composed by all elements which belong to A and all elements which belong to B, common elements are taken only one time

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so would my answer be {3,12}?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2no, because the set {3,12} is the intersection between A and B

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the right definition is: an element, say x, belongs to \(A \cup B\) if x belongs to A or x belongs to B

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2for example: 8 belongs to A, so 8 belongs to \(A \cup B\)

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2graphically speaking, we can make this drawing: dw:1443705906364:dw

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2that's right! it is option a
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