Let U = {1,2,3,4,5), A={1,2,5}, B = {1,4,5), and C= {1,2,3}. (a) Find A U (BUC). (b) Find (A U B) U C. (c) State a conjecture. Use the results in parts (a) and (b) to answer this part. (a) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. AU (BUC) = { } (Use a comma to separate answers as needed.) OB. AU (BUC) = Ø (b) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. (AUB) UC= { } (Use a comma to separate answers as needed.) OB. (AUB) UC=Ø (c) Make a conjecture. O A. For any sets A, B, and C, AU (BUC) = (AUB) U C. O B. For any sets A, B, and C, (A U B) U C = Ø when AU (BU C) #Ø. Next

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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**Set Operations Exploration**

**Given:**
Universal set \( U = \{1, 2, 3, 4, 5\} \)  
Set \( A = \{1, 2, 5\} \)  
Set \( B = \{1, 4, 5\} \)  
Set \( C = \{1, 2, 3\} \)  

**Tasks:**

**(a) Find \( A \cup (B \cup C) \).**  
- Select the correct choice and fill in the answer if needed:
  - \( \text{A. } A \cup (B \cup C) = \{\} \) (Use a comma to separate answers as needed.)
  - \( \text{B. } A \cup (B \cup C) = \emptyset \)

**(b) Find \( (A \cup B) \cup C \).**  
- Select the correct choice and fill in the answer if needed:
  - \( \text{A. } (A \cup B) \cup C = \{\} \) (Use a comma to separate answers as needed.)
  - \( \text{B. } (A \cup B) \cup C = \emptyset \)

**(c) Make a conjecture.**  
- Choose one of the statements below:
  - \( \text{A. For any sets A, B, and C, } A \cup (B \cup C) = (A \cup B) \cup C. \)
  - \( \text{B. For any sets A, B, and C, } (A \cup B) \cup C = \emptyset \text{ when } A \cup (B \cup C) \neq \emptyset. \)
Transcribed Image Text:**Set Operations Exploration** **Given:** Universal set \( U = \{1, 2, 3, 4, 5\} \) Set \( A = \{1, 2, 5\} \) Set \( B = \{1, 4, 5\} \) Set \( C = \{1, 2, 3\} \) **Tasks:** **(a) Find \( A \cup (B \cup C) \).** - Select the correct choice and fill in the answer if needed: - \( \text{A. } A \cup (B \cup C) = \{\} \) (Use a comma to separate answers as needed.) - \( \text{B. } A \cup (B \cup C) = \emptyset \) **(b) Find \( (A \cup B) \cup C \).** - Select the correct choice and fill in the answer if needed: - \( \text{A. } (A \cup B) \cup C = \{\} \) (Use a comma to separate answers as needed.) - \( \text{B. } (A \cup B) \cup C = \emptyset \) **(c) Make a conjecture.** - Choose one of the statements below: - \( \text{A. For any sets A, B, and C, } A \cup (B \cup C) = (A \cup B) \cup C. \) - \( \text{B. For any sets A, B, and C, } (A \cup B) \cup C = \emptyset \text{ when } A \cup (B \cup C) \neq \emptyset. \)
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