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Practice Problems
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1
Is (2,3) the same as (3,2)?
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Answer No, they are different
2
If A={1,2} and B={x,y}, how many ordered pairs are in A×B?
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Answer 4
3
If A has 3 members and B has 5 members, how many ordered pairs are in A×B?
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Answer 15
4
What is the Cartesian product?
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Answer The set of all ordered pairs from two sets