Answer: 512.
- A 64
- B 256
- C 512
- D 9
Correct answer: C. 512
Explanation: A relation is any subset of the 3×3 = 9 ordered pairs, giving 2⁹ = 512.
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