To find the complement of set $A$ (denoted as $A'$) using the roster method, you need to list all the elements in the universal set $U$ that are not in set $A$.

Given:

• Universal set $U = \{t, u, v, w, x, y, z\}$
• Set $A = \{u, v\}$

The complement of $A$ (denoted as $A'$) includes all elements in $U$ that are not in $A$.

So, $A' = \{t, w, x, y, z\}$.

Would you like more details or have any questions?

Here are some related questions:

1. What is the difference between a subset and a complement of a set?
2. How do you find the intersection of two sets?
3. How can you use Venn diagrams to represent set complements?
4. What is the complement of the empty set?
5. How do you find the union of two sets?

Tip: When working with sets, always check if they are subsets, supersets, or disjoint to better understand their relationships.