Practice Definition Of Sets (15.1) - Sets - Discrete Mathematics

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6 sample questions

Question 1.
Define what a null set is.
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Think about a basket that contains nothing.
Question 2.
How would you represent a singleton set?
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Consider a basket holding just one fruit.
3Question 3.
What is the definition of a set?
- An ordered collection of objects
- A collection of distinct objects without order
- A group of similar items
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Remember the characteristics of sets.
4Question 4.
True or False: The set {1, 2, 3} is equal to the set {3, 2, 1}.
- True
- False
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Check if all elements match.
Question 5.
Given set A = {2, 4, 6} and set B = {1, 2, 3, 4, 5}, determine A ∪ B and A ∩ B.
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Think about which elements are in either or both sets.
Question 6.
If set C = {c | c is a character in the English alphabet}, what is the cardinality of the power set P(C)?
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Remember to use the formula for the power set's cardinality.

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