Suppose X= 1, 2, 3, 4 and R is a relation on X. If R= (1, 1), (2, 2), (3, 3), (1, 2), (2, 1), (2, 3), (3, 2) , then which one of the following is correct?

NDA 2019 Mathematics question

Suppose and R is a relation on X. If , then which one of the following is correct?

Answer: (D)

Reflexive: , so R is not reflexive. Symmetric: and occur in pairs, so R is symmetric.

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Question ID VK-035347