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Maths-

General

Easy

Question

Let $R$ be an equivalence relation on a finite set $A$ having $n$ elements. Then, the number of ordered pairs in $R$ is

Less than $n$
Greater than or equal to $n$
Less than or equal to $n$
None of these

The correct answer is: Greater than or equal to $n$

Since $R$ is an equivalence relation on set $A.$ Therefore $left parenthesis a comma a right parenthesis element of R$ for all $a element of A$ .
Hence, $R$ has at least $n$ ordered pairs

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