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Questions and Answers
How many relations are there on a set with 4 elements?
How many relations are there on a set with 4 elements?
- 256 (correct)
- 16
- 512
- 32
Which of the following statements is true about a relation on set A?
Which of the following statements is true about a relation on set A?
- It must have fewer elements than A.
- It must be a subset of A. (correct)
- It must have the same number of elements as A.
- It must contain all possible combinations of elements in A.
How many elements are there in the set A × A, if A has n elements?
How many elements are there in the set A × A, if A has n elements?
- $n$
- $n^2$ (correct)
- $2n$
- $2^n$
