Let D equal bracket 14 – 17–19 bracket E equal 14, 16, 17, 18, bracket and F equal 13, 15, 16, 17, 19, then list the elements in the D u  E

Let's solve this step by step.

### Step 1: List the elements in each set
- \( D = \{14, 17, 19\} \)
- \( E = \{14, 16, 17, 18\} \)
- \( F = \{13, 15, 16, 17, 19\} \)

### Step 2: Find the union of sets \( D \) and \( E \)
The union of two sets \( D \cup E \) includes all the elements that are in either \( D \), \( E \), or both. There should be no repetition of elements.

\[
D \cup E = \{14, 17, 19\} \cup \{14, 16, 17, 18\}
\]

### Step 3: Combine the elements and remove duplicates
\[
D \cup E = \{14, 16, 17, 18, 19\}
\]

So, the elements in \( D \cup E \) are **14, 16, 17, 18, 19**.

Would you like further details or have any questions? Here are some related questions:

1. What are the elements in \( D \cap E \)?
2. What is the union \( D \cup F \)?
3. How do you find the intersection of sets?
4. What is the union of all three sets \( D \cup E \cup F \)?
5. How would the result change if \( F \) had an additional element?

**Tip:** The union of sets is always at least as large as the largest set involved, and it includes all unique elements from all sets.

Let D equal bracket 14 – 17–19 bracket E equal 14, 16, 17, 18, bracket and F equal 13, 15, 16, 17, 19, then list the elements in the D u E

Learn how to find the union of sets D and E, including a step-by-step guide on listing all unique elements. This problem covers key set theory concepts and is suitable for students in Grades 5-7.

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