Q.

Let R be a reflexive relation on a finite set A having elements, and let there be m ordered pairs in R. Then

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a

m≥n

b

m≤n

c

m=n

d

None of these

answer is A.

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Detailed Solution

Since R is reflexive relation on A, therefore a, a∈R for all a∈A.The minimum number of ordered pairs in R is n.Hence, m≥n.
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Let R be a reflexive relation on a finite set A having elements, and let there be m ordered pairs in R. Then