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1 October, 11:59

Given the two sets, which statement is true?

А = {1, 2}

В = {1, 2, 3, 4}

B C A

3 C A

4 C A

A C B

none of the above

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Answers (1)
  1. 1 October, 14:17
    0
    A⊆B

    Step-by-step explanation:

    C⊆D if the set C contains only elements from set D.

    Let's look at the first choice:

    B⊆A is not true because 3 and 4 are not in A.

    Second choice:

    3⊆A is not true because 3 is not a set; it is an element.

    Also, 3 is not even in {1,2}.

    Third choice:

    See explanation for choice 2.

    Fourth choice:

    A⊆B is true because all the elements in A are contained in B.

    That is the elements 1 and 2 are contained in the set {1,2,3,4} which is B.
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