Intersection Requirement
Discrete Mathematics
Level
4
How many ordered pairs \( (A, B) \), where \(A, B\) are subsets of \( \{ 1, 2, 3, 4, 5\} \) are there, such that \( | A \cap B | = 1 \)?
Details and assumptions
Students who are unfamiliar with Set Notation can refer to the blog post on Set Notation for definitions.
by
Calvin Lin