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Practice Exercise

3 questions
English
You can do it with hard work and consistency!
mathematics
1

Let X= {2,4,6,8,9,10} Y= {2,6,7,8,9,10}. Is X a subset of Y?

True

False

2

Let X= {2,4,6,8,9,10} Y= {2,6,7,8,9,10}. What is the Universal set?

U= {2,4,6,7,8,9,10}

U={2,3,6,8,9}

U={2,4,6,7,8,10}

U={2,4,6,8,9,10}

3

Given A= {1,2,4,5,5,5,6,7,8,9,10}. What is the cardinality of set A?

∣ A ∣=8

∣ A ∣=11

∣ A ∣=7

∣ A ∣=9