2022 Easy
Single Choice
Marks: 4.00 / −1.00
If \( A = \{1,2,3\} \) and \( B = \{2,3,4\} \), then \( A \cup B = \)
- A. \( \{1,2,3,4\} \)
- B. \( \{2,3\} \)
- C. \( \{1,4\} \)
- D. \( \emptyset \)
Correct Option:
- A. \( \{1,2,3,4\} \) ✓ Correct
- B. \( \{2,3\} \)
- C. \( \{1,4\} \)
- D. \( \emptyset \)
Hint: Union: all elements from both sets (no duplicates).
Solution:
\( A \cup B = \{1,2,3,4\} \)
sets