Maths-
General
Easy

Question

Which one of the following relations on R is an equivalence relation?

  1. a blank R subscript 1 end subscript b left right double arrow open vertical bar a close vertical bar equals vertical line b vertical line  
  2. a blank R subscript 2 end subscript b left right double arrow a greater or equal than b  
  3. a blank R subscript 3 end subscript b left right double arrow a blank d i v i d e s blank b  
  4. a blank R subscript 4 end subscript b left right double arrow a less than b  

The correct answer is: a blank R subscript 3 end subscript b left right double arrow a blank d i v i d e s blank b

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