Answer: disjoint sets.
- A disjoint sets
- B equal-sized sets
- C nested subsets
- D matching power sets
Correct answer: A. disjoint sets
Explanation: Sets with an empty intersection are disjoint.
A Venn diagram makes set identities visual: A∪B is everything inside either circle, A∩B is only the overlap, and the region outside both circles represents the complement of their union - directly illustrating De Morgan's law (A∪B)′ = A′∩B′.
Concept context
Types of sets, operations (union/intersection/complement), relations, and types of functions with domain and range