Q3: Let A,B, C , be sets with a universal set U. Please draw and express with pictures each of the following: 1) A NB nC 2) AUBUC 3) A UB 4) (An C) U B

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Chapter2: Second-order Linear Odes
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**Question 3: Set Operations with Universal Set U**

Let \( A, B, C \) be sets with a universal set \( U \). Please draw and express with pictures each of the following:

1. \( A \cap B \cap C \)
2. \( \overline{A \cup B \cup C} \)
3. \( A \cup \overline{B} \)
4. \( (A \cap \overline{C}) \cup \overline{B} \)

**Explanation of the requested expressions:**

1. **\( A \cap B \cap C \)**:
   - **Description**: The intersection of sets \( A \), \( B \), and \( C \); this operation results in the elements that are common to all three sets.
   - **Graph/Diagram**: Illustrate a Venn diagram with three overlapping circles representing sets \( A \), \( B \), and \( C \). Shade the region where all three circles overlap.

2. **\( \overline{A \cup B \cup C} \)**:
   - **Description**: The complement of the union of sets \( A \), \( B \), and \( C \); this operation results in the elements that are not in \( A \), \( B \), or \( C \).
   - **Graph/Diagram**: Illustrate a Venn diagram with three overlapping circles. Shade the region outside all three circles.

3. **\( A \cup \overline{B} \)**:
   - **Description**: The union of set \( A \) with the complement of set \( B \); this operation results in all elements that are in \( A \) or not in \( B \).
   - **Graph/Diagram**: Illustrate a Venn diagram with two overlapping circles representing \( A \) and \( B \). Shade both the entire circle of \( A \) and the region outside of circle \( B \).

4. **\( (A \cap \overline{C}) \cup \overline{B} \)**:
   - **Description**: First, compute the intersection of set \( A \) with the complement of set \( C \), then take the union of that result with the complement of set \( B \); this results in all elements that are either in \( A \) and not in \( C \), or not
Transcribed Image Text:**Question 3: Set Operations with Universal Set U** Let \( A, B, C \) be sets with a universal set \( U \). Please draw and express with pictures each of the following: 1. \( A \cap B \cap C \) 2. \( \overline{A \cup B \cup C} \) 3. \( A \cup \overline{B} \) 4. \( (A \cap \overline{C}) \cup \overline{B} \) **Explanation of the requested expressions:** 1. **\( A \cap B \cap C \)**: - **Description**: The intersection of sets \( A \), \( B \), and \( C \); this operation results in the elements that are common to all three sets. - **Graph/Diagram**: Illustrate a Venn diagram with three overlapping circles representing sets \( A \), \( B \), and \( C \). Shade the region where all three circles overlap. 2. **\( \overline{A \cup B \cup C} \)**: - **Description**: The complement of the union of sets \( A \), \( B \), and \( C \); this operation results in the elements that are not in \( A \), \( B \), or \( C \). - **Graph/Diagram**: Illustrate a Venn diagram with three overlapping circles. Shade the region outside all three circles. 3. **\( A \cup \overline{B} \)**: - **Description**: The union of set \( A \) with the complement of set \( B \); this operation results in all elements that are in \( A \) or not in \( B \). - **Graph/Diagram**: Illustrate a Venn diagram with two overlapping circles representing \( A \) and \( B \). Shade both the entire circle of \( A \) and the region outside of circle \( B \). 4. **\( (A \cap \overline{C}) \cup \overline{B} \)**: - **Description**: First, compute the intersection of set \( A \) with the complement of set \( C \), then take the union of that result with the complement of set \( B \); this results in all elements that are either in \( A \) and not in \( C \), or not
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