Question
Which one of the following relations on R is an equivalence relation?
Options :
aR₁b ⇔ |a| = |b|
aR₂b ⇔ a ≥ b
aR₃b ⇔ a divides b
aR₄b ⇔ a < b
Answer :
aR₁b ⇔ |a| = |b|
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