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26 April, 15:25

Given X = {15, 22, 33, 44, 89, 165, 1025} and Y = {-5, 15, 33, 88, 99, 150, 160, 1025}, which of the following statements is false?

X U Y = {-5, 15, 22, 33, 44, 89, 99, 150, 160, 165, 1025}

X ∩ Y = {15, 33, 1025}

ØC (X U Y)

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Answers (2)
  1. 26 April, 15:26
    0
    1

    Step-by-step explanation:

    1 is wrong because 88 is in Y but has been ommited from the union of both intervals
  2. 26 April, 15:41
    0
    XUY is the false statement.

    Step-by-step explanation:

    Given X = {15, 22, 33, 44, 89, 165, 1025}

    and Y = {-5, 15, 33, 88, 99, 150, 160, 1025}

    1). XUY = All elements or terms of both the sets.

    XUY = {-5, 15, 22, 33, 44, 88, 89, 99, 150, 160, 165, 1025}

    But the in the given option 88 is missing. Therefore, this statement is False.

    2). X∩Y = common terms of both the sets.

    X∩Y = {15, 33, 1025}

    Matches the given option, so true.

    3). ∅ ⊂ (XUY)

    Since empty set is a subset of every set so this option is also true.

    Therefore, XUY is the false statement.
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