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chenna
 2 years ago
Best ResponseYou've already chosen the best response.0A U B means all of those number in A and B.

across
 2 years ago
Best ResponseYou've already chosen the best response.0The union of two sets is defined as follows:\[A\cup B=\left\{x:x\in A\text{ or }x\in B\right\}.\]
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