Let U be the set of integers from 1 to 15. U = {1,2,3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15} Set A and set B are subsets of U. Set A contains multiples of 2, such as 2, 4, 6.... Set B contains multiples of 3, such as 3, 6, 9.... Use the Venn diagram to help answer the question. A Multiples of 2 B Multiples of 3 U © 2020 StrongMind. Created using GeoGebra. Which set is AU B? O {1,3, 5, 7,9, 11, 13, 15} O {1,2, 4, 5, 7, 8, 10, 11, 13, 14} O {6, 12} O {2,3, 4, 6, 8, 9, 10, 12, 14, 15}

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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### Union of Sets: Understanding through Venn Diagrams

#### Example Problem

**Problem Statement:**

Let \( U \) be the set of integers from 1 to 15:

\[ U = \{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\} \]

Set \( A \) and set \( B \) are subsets of \( U \). Set \( A \) contains multiples of 2, such as 2, 4, 6, ..., while Set \( B \) contains multiples of 3, such as 3, 6, 9, ...

#### Venn Diagram and Union of Sets

Use the Venn diagram below to help answer the question. The diagram illustrates the relationship between sets \( A \) and \( B \) within the universal set \( U \).

**Venn Diagram Explanation:**

- The Venn diagram contains two intersecting circles within a rectangle. 
- The rectangle represents the universal set \( U \).
- Circle \( A \) represents multiples of 2.
- Circle \( B \) represents multiples of 3.
- The intersection of circles \( A \) and \( B \) represents the elements that are multiples of both 2 and 3.

<img src="https://i.imgur.com/ZSl0p4i.png" alt="Venn Diagram">

#### Question:

Which set is \( A \cup B \) (the union of sets \( A \) and \( B \))?

- \( \{1, 3, 5, 7, 9, 11, 13, 15\} \)
- \( \{1, 2, 4, 5, 7, 8, 10, 11, 13, 14\} \)
- \( \{6, 12\} \)
- \( \{2, 3, 4, 6, 8, 9, 10, 12, 14, 15\} \)

The correct answer is the option that lists all unique elements that are in either set \( A \), set \( B \), or both.
Transcribed Image Text:### Union of Sets: Understanding through Venn Diagrams #### Example Problem **Problem Statement:** Let \( U \) be the set of integers from 1 to 15: \[ U = \{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\} \] Set \( A \) and set \( B \) are subsets of \( U \). Set \( A \) contains multiples of 2, such as 2, 4, 6, ..., while Set \( B \) contains multiples of 3, such as 3, 6, 9, ... #### Venn Diagram and Union of Sets Use the Venn diagram below to help answer the question. The diagram illustrates the relationship between sets \( A \) and \( B \) within the universal set \( U \). **Venn Diagram Explanation:** - The Venn diagram contains two intersecting circles within a rectangle. - The rectangle represents the universal set \( U \). - Circle \( A \) represents multiples of 2. - Circle \( B \) represents multiples of 3. - The intersection of circles \( A \) and \( B \) represents the elements that are multiples of both 2 and 3. <img src="https://i.imgur.com/ZSl0p4i.png" alt="Venn Diagram"> #### Question: Which set is \( A \cup B \) (the union of sets \( A \) and \( B \))? - \( \{1, 3, 5, 7, 9, 11, 13, 15\} \) - \( \{1, 2, 4, 5, 7, 8, 10, 11, 13, 14\} \) - \( \{6, 12\} \) - \( \{2, 3, 4, 6, 8, 9, 10, 12, 14, 15\} \) The correct answer is the option that lists all unique elements that are in either set \( A \), set \( B \), or both.
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