CUET · MATHS · PYQ PAPER 2023
The maximum number of equivalence relations on the set \(A=\{3,5,7\}\) is :
- A 1
- B 2
- C 3
- D 5
Answer & Solution
Correct Answer
(D) 5
Step-by-step Solution
Detailed explanation
Number of elements \(|A|=3\). Number of equivalence relations = \(B_3\). \(B_3 = S(3,1) + S(3,2) + S(3,3)\). \(B_3 = 1 + 3 + 1 = 5\).
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