Practice Definitions In The Context Of Sets (15.4) - Sets - Discrete Mathematics

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6 sample questions

Question 1.
What is a null set?
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Think of an empty box.
Question 2.
Give an example of a singleton set.
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Just one item inside the braces.
3Question 3.
What does the symbol ϕ represent?
- A null set
- A singleton set
- A set with multiple elements
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Think of it as an empty box.
4Question 4.
Is {1} a proper subset of {1, 2}?
- True
- False
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Consider whether both sets are identical.
Question 5.
Given the set A = {a, b, c}, determine the power set P(A) and its cardinality.
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Consider all combinations of including or excluding each element.
Question 6.
If we have sets A = {1, 2, 3} and B = {2, 3, 4}, determine A ∩ B and A - B.
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Remember to identify common elements for intersection and only elements in A for set difference.

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