Question

Given the following sets: A={ 2, 4, 6, 8, 10} B={ 3, 5, 7, 9} C={ 2, 3, 5, 7} N={ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} Match the following Unions and intersections to the correct set.

a) {2, 3, 5, 7, 9}


b){3, 5, 7, 9}


ｃ）{2, 3, 4, 5, 6, 7, 8, 10}


ｄ）{ }


ｅ）{2, 4, 6, 8, 10}

1.
What is A U C?

2.
What is A ∩ B?

3.
What is A ∩ N?

4.
What is B ∩ N?

5.
What is B U C?

Answer 1

1. c - all the numbers in either of the sets

2. d - only the numbers in both sets (there are none)

3. e - A is a proper subset of N, so their intersection is identical to A

4. b - B is a proper subset of N, so their intersection is identical to B

5. a - all the numbers in either of the sets