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Let N denote the set of all natural numb...

Let N denote the set of all natural numbers and R be the relation on `N xx N` defined by (a,b) R (c,d) if `ad (b+c) = bc(a+d)`, then R is

A

Symmetric only

B

Reflexive only

C

Transitive only

D

An equivalence relation

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The correct Answer is:
D
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