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Sets

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Which statement is correct using the symbol ∈ ?

10 ∈ {1, 3, 5, 7}

3 ∈ {1, 2, 3, 4}

5 ∈ {1, 2, 3, 4}

7 ∈ {2, 4, 6, 8}

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Which statement is correct using the symbol ∉ ?

7 ∉ {1, 3, 5, 7}

9 ∉ {1, 3, 5, 7}

3 ∉ {1, 3, 5, 7}

5 ∉ {1, 3, 5, 7}

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Which of these is TRUE?

{1, 2, 3} = {3, 2, 1}

{2, 4} = {2, 4, 6}

{1, 2, 3} = {1, 2, 4}

{1, 3, 5} = {1, 5, 7}

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Which of these is TRUE?

{4, 6, 8} ≠ {4, 6, 8}

{1, 2, 3} ≠ {3, 2, 1}

{2, 5, 7} ≠ {3, 5, 7}

{a, b} ≠ {a, b}

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Which set represents the null set (∅)?

The set of months with 32 days

The set of days in a week

The set of letters in the word "cat"

The set of prime numbers less than 10

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Which of these is TRUE?

{1, 2} ⊂ {1, 2, 3}

{a, b, c} ⊂ {a, d}

{1, 4} ⊂ {2, 3, 5}

{5, 6} ⊂ {4, 5}

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Which of these is TRUE?

{x, y} ⊄ {x, y, z}

{3, 4} ⊄ {1, 2, 5}

{a} ⊄ {a, b}

{1, 2} ⊄ {1, 2, 3}

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Which symbol represents the intersection

=

∪

∅

∩

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If A = {1, 2, 3} and U = {1, 2, 3, 4, 5}, what is A′ ?

{4, 5}

1, 2, 3}

{1, 2, 3, 4, 5}

∅

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If A = {1, 2, 3} and B = {2, 3}, what is A \ B?

∅

{1}

{2, 3}

{1, 2, 3}

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If A = {2, 4, 6} and B = {1, 2, 3, 4, 5, 6}, which is correct?

A ⊄ B

A ⊂ B

A = B

B ⊂ A

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Which of the following is true?

∅ ⊂ {1, 2, 3}

{1, 2, 3} ⊂ ∅

∅ = {1}

{0} = ∅

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What does the symbol # represent

Union

Subset

Cardinal Number

Intersection

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What does the symbol ∅ represent

Union

Subser

Compliment

Null Set

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What does the symbol ∪ represent

Compliment

Less

Union

Intersection

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Which symbol represents compliment

∪

⊂

\

'

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