We are tasked with finding the union of sets $A$ and $B$, denoted as $A \cup B$. Let’s proceed step by step:

Given Sets:

• $A = \{2, 4, 6, 8\}$
• $B = \{2, 3, 4, 5\}$

Definition of Union ($A \cup B$):

The union of two sets includes all distinct elements from both sets.

Step 1: Combine Elements of $A$ and $B$

Combine all elements: $A \cup B = \{2, 4, 6, 8\} \cup \{2, 3, 4, 5\}$

Step 2: Remove Duplicates and Arrange in Ascending Order

The combined elements are: $\{2, 4, 6, 8, 3, 5\}$

Now, sorting them in ascending order: $A \cup B = \{2, 3, 4, 5, 6, 8\}$

Final Answer (as requested, without spaces or commas):

234568

Do you want me to explain any step in more detail or perform other operations with these sets?

Related Questions:

1. What is the intersection of $A$ and $B$ ($A \cap B$)?
2. How do we find the union $A \cup C$ using the given sets?
3. What is the difference $A - B$?
4. What is the complement of $B$ in the universal set $U$?
5. How would the union of all three sets $A \cup B \cup C$ look?

Tip:

When working with unions, always combine all elements first and then remove duplicates for a clear and sorted result.