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Not Reflexive

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

MathematicsIf a relation is symmetric and transitive, is it always reflexive? Choose the correct option.Class 12Relations and FunctionsTypes of relationsHard MathematicsOn (A={1,2,3,4,5}), (aRb) if and only if both (a) and (b) are odd. Choose the correct statement.Class 12Relations and FunctionsTypes of relationsHard MathematicsOn (A={1,2,3}), (R={(1,1),(2,2),(1,2),(2,3),(1,3)}). What type of relation is it?Class 12Relations and FunctionsTypes of relationsHard MathematicsOn a family of sets, (A R B) if (A\subset B). What type of relation is this?Class 12Relations and FunctionsTypes of relationsMedium MathematicsOn (A={1,2,3}), (R={(1,2),(2,1),(1,1),(2,2)}). It is symmetric and transitive, but why is it not reflexive?Class 12Relations and FunctionsTypes of relationsMedium MathematicsWhich relation is neither reflexive nor symmetric, but transitive?Class 12Relations and FunctionsTypes of relationsMedium MathematicsA relation (aRb) holds if person (a) is taller than person (b). On a set of people, which property is correct?Class 12Relations and FunctionsTypes of relationsMedium MathematicsIf (A) is a non-empty set, why is the empty relation on (A) not reflexive?Class 12Relations and FunctionsTypes of relationsMedium MathematicsOn integers, (aRb) if (a-b) is odd. Why is this relation not reflexive?Class 12Relations and FunctionsTypes of relationsMedium MathematicsOn real numbers, (aRb) iff (a\ne b). Is it reflexive?Class 12Relations and FunctionsTypes of relationsEasy MathematicsOn natural numbers, (aRb) iff (a<b). Why is it not reflexive?Class 12Relations and FunctionsTypes of relationsEasy MathematicsWhy is (R={(1,1),(2,2),(1,2)}) not reflexive on (A={1,2,3})?Class 12Relations and FunctionsTypes of relationsEasy MathematicsIs the empty relation reflexive on a non-empty set?Class 12Relations and FunctionsTypes of relationsEasy MathematicsWhy is (R={(1,2),(2,1)}) not reflexive on (A={1,2,3})?Class 12Relations and FunctionsTypes of relationsEasy MathematicsOn (A={1,2,3,4,5}), (R={(a,b):a+b\le6}). Which statement is correct?Class 12Relations and FunctionsIntroduction to RelationsExpert MathematicsOn integers, (aRb) iff (a+2b) is divisible by (4). Which statement is correct?Class 12Relations and FunctionsIntroduction to RelationsExpert MathematicsOn (A={1,2,3}), if (aRb) when (a+b) is odd, why is (R) not reflexive?Class 12Relations and FunctionsIntroduction to RelationsMedium MathematicsIf (R={(1,2),(2,1),(1,1),(2,2)}) on (A={1,2,3}), why is (R) not reflexive?Class 12Relations and FunctionsIntroduction to RelationsMedium MathematicsIn which situation will a relation (R) on (A) not be reflexive?Class 12Relations and FunctionsIntroduction to RelationsMedium MathematicsIf (R={(1,2),(2,1),(2,3),(3,2)}), why is it not reflexive on (A={1,2,3})?Class 12Relations and FunctionsIntroduction to RelationsMedium