Which of the following is a relation?, {(1,a), (2,b)}, {1,2,3}, {a,b,c}, None of these, If A = {1,2}, then (A X A) has:, 2 elements, 4 elements, 6 elements, 8 elements, The first component of an ordered pair belongs to:, Domain, Codomain, Range, Relation, The range of R={(1,a),(2,b)} is:, {1,2}, {1,a}, {a,b}, {2,b}, The codomain of a relation is:, The set of first elements, The entire second set, Only the related elements, The Cartesian product

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