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    If we define the following two sets:
    A = {1, 2, 3, 4, 5}
    B = {5, 6, 7, 8, 9}
    What are the following:
    A - B?
    A union B? (The union of A and B)
    A intersect B? (The intersect of A and B)

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    Solution Preview

    A - B = {1, 2, 3, 4}

    We take set A and remove any elements from it that are found in set B. In this case, the ...

    Solution Summary

    This job applies set theory. The subtraction, union and intersection is examined.