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Given set A={1, 2 ,3}and a relation R = ...

Given set A={1, 2 ,3}and a relation R = {(1,2), (2, 1)} the relation will be
(a) Reflexive if (1, 1) is added
(b) Transitive if (1,1) is added
(c) symmetric if (2, 3) is added
(d) symmetric if (3, 2) is added

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