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Questions and Answers
Which of the following statements is true about the union of sets A and B?
Which of the following statements is true about the union of sets A and B?
- If A and B are non-empty sets, then A ∪ B is also a non-empty set. (correct)
- If A and B are infinite sets, then A ∪ B is also an infinite set.
- If A and B are finite sets, then A ∪ B is also a finite set.
- If A and B are disjoint sets, then A ∪ B is also a disjoint set.
Which of the following is true about the intersection of sets A and B?
Which of the following is true about the intersection of sets A and B?
- If A and B are non-empty sets, then A ∩ B is also a non-empty set. (correct)
- If A and B are disjoint sets, then A ∩ B is also a disjoint set.
- If A and B are finite sets, then A ∩ B is also a finite set.
- If A and B are infinite sets, then A ∩ B is also an infinite set.
Which of the following is true about the complement of a set A?
Which of the following is true about the complement of a set A?
- The complement of A is always an infinite set.
- The complement of A is the set of all elements that are not in A. (correct)
- The complement of A is always a finite set.
- The complement of A is always a subset of A.
