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Which one of the following relations on ...

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

A

`a R_(1) b hArr |a| =|b|`

B

`a R_(2) b hArr a ge b`

C

`aR_(3) b hArr a` divides b

D

`a R_(4)b hArr a lt b`

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The correct Answer is:
A
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