Which of the following is the principle of inclusion-exclusion used for ?
2025
Which of the following is the principle of inclusion-exclusion used for ?
- A.
Finding the size of the union of two sets
- B.
Finding the difference between two sets
- C.
Finding the symmetric difference between two sets
- D.
Finding the complement of a set
Attempted by 29 students.
Show answer & explanation
Correct answer: A
This option correctly identifies the principle's purpose. The formula calculates union size by adding individual set sizes and subtracting their intersection to avoid double-counting elements.