If in set A={1,2,3,4,5} and R={(a,b):|a-b| is even} it is symmetric bu

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If in set A={1,2,3,4,5} and R={(a,b):|a-b| is even} it is symmetric but if |1-2|=1 & |2-1|=1 but 1 is not an even how this symmetric explain??

JATIN SAINI

May 30, 2018, 10:44 a.m.

Answers!

Ronil Dash

July 2, 2018, 5:29 p.m.

Nice question!

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