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Exact Pairs

Class 12 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsOn (A={1,2,3,4}), (R) is reflexive and has exactly (9) pairs. How many such relations are possible?Class 12Relations and FunctionsReflexive relationExpert MathematicsIf (A) has (n) elements, what is the number of reflexive relations having exactly (n+3) pairs?Class 12Relations and FunctionsReflexive relationHard MathematicsIn how many ways can a reflexive relation with exactly (5) ordered pairs be formed on (A={1,2,3})?Class 12Relations and FunctionsReflexive relationExpert MathematicsA reflexive relation on a 3-element set has exactly 5 pairs. How many such relations are possible?Class 12Relations and FunctionsReflexive relationHard MathematicsOn (A={1,2,3}), how many reflexive relations with exactly 4 pairs are possible?Class 12Relations and FunctionsReflexive relationMedium MathematicsIf (R) is a reflexive relation on (A={1,2,3}) with exactly 4 pairs, how many of those 4 pairs must be self-pairs?Class 12Relations and FunctionsReflexive relationMedium