# Lectures - 1.1 Review of Sets and Set Operations

Quiz 1.1 #1 - Subsets

Let X = {a, b, c}. Which set is a subset of X?

- A. {a, b, c, d}
- B. {Kilroys, Nicks, Brothers}
- C. {a, b}

Quiz 1.1 #2 - Unions

Let A = {a, b, c}, B = {c, d, e}. Which of the following is A U B?

- A. {a, b, c, d, e, f}
- B. {a, b, c, d, e}
- C. {a, b, c, c, d, e}

Quiz 1.1 #3 - Complements

Let U = {1, 2, 3, 4, 5}, A = {2, 3}. Which of the following is A’?

- A. {1, 4, 5}
- B. {2, 3}
- C. {1, 2, 3}

Cartesian Products Made Easy