JEE MainMathematicsSets and RelationsMCQ+4 / −1
Let R1 = {(a, b) N N : |a b| 13} and R2 = {(a, b) N N : |a b| 13}. Then on N :
- ABoth R1 and R2 are equivalence relations
- BNeither R1 nor R2 is an equivalence relation
- CR1 is an equivalence relation but R2 is not
- DR2 is an equivalence relation but R1 is not
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