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Solution


Q.

If a relation R on the set {1, 2, 3} be defined by R = {(1, 2)}, then R is:
1 reflexive  
2 transitive  
3 symmetric  
4 none of these  

Ans.

(4)

Ans.     none of these

Explanation:

R on the set {1, 2, 3} be defined by  R = {(1, 2)}

It is clear that R is not reflexive, transitive and symmetric.