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DISCRETE MATH

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50 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt

    If A = {x/x is a positive even integer less than 20}, which of the following is TRUE?

    15 ∈ A

    16 ∉ A

    18 ∈ A

    20 ∈ A

  • 2. Multiple Choice
    45 seconds
    1 pt

    If U = {x/x is a whole number less than 20} and A = {1, 3, 5, 7, 9, 11, 13, 15, 17}. Find Ac.

    { 2, 4, 6, 8, 10, 12, 14, 16, 18 }

    { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18 }

    2, 4, 6, 8, 10, 12, 14, 16, 18, 20 }

    { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 28 }

  • 3. Multiple Choice
    45 seconds
    1 pt

    X  Y = { 4, 7 }

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