MCQ
If set A has 2 elements and set B has 4 elements then how many relations are possible?
- A32
- B128
- C256
- D64
✓
Answer
- 256
Solution:
We know, A × B has 2 × 4 i.e. 8 elements.
Number of subsets of A × B is 28 i.e. 256.
A relation is a subset of cartesian product so,
number of possible relations are 256.
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