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20 January, 20:09

Given D = x. E = x. F = x. 1. The expression D∪F means (64 and 81) OR (all whole numbers). 2. The expression D∩F means (16,22,24,18) OR (12,14,16,18). 3. The expression D∩E means (all whole numbers) OR (64,81). 4. The expression E∩F means (all whole numbers) OR (empty set). 5. The expression D∩ (E∪F) means (empty set) OR (81,64,12,14,16,18)

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  1. 20 January, 20:14
    0
    DUF is all whole numbers because the definition of a union is the set that contains both sets.

    DNF means (16,22,24,18) because an intersection is the common numbers between the sets

    DNE means (64,81)

    ENF is an empty set

    DN (EUF) = (81,64,12,14,16,18)

    Good luck I hate sets and set proofs
  2. 20 January, 22:31
    0
    Given D = x is a whole number

    E = x

    F = x The expression D ∪ F means: all whole numbers

    (The expression D ∩ F means: 12, 14, 16, 18)

    ^I got this one wrong using this site^

    The expression D ∩ E means: 64, 81

    The expression E ∩ F means: the empty set

    The expression D ∩ (E ∪ F) means: 81, 64, 12,14, 16, 18

    I've fact checked these answers
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