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andrewj43

  • 3 years ago

A = {1, 2, 3, 4, 5} and B = {3, 6, 9, 12, 15}, what is A U B? {1, 2, 3, 4, 5, 6, 9, 12, 15} {3} {1, 2, 3, 3, 4, 5, 6, 9, 12, 15} { }

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  1. nubeer
    • 3 years ago
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    A U B means all the numbers in set A and set B

  2. ajprincess
    • 3 years ago
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    AUB is a set containing all the elements that belong to both A and B

  3. ajprincess
    • 3 years ago
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    Dose that help? @andrewj43

  4. andrewj43
    • 3 years ago
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    Yes so its A

  5. ajprincess
    • 3 years ago
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    yup right:)

  6. andrewj43
    • 3 years ago
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    The domain of the following relation: R: {(−4, 3), (3, 6), (−2, 1), (3, 6)} is {1, 3, 6} {−4, 3, −2, 3} {−4, −2, 3} No domain exists @ajprincess

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