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

MathematicsIf (R) is reflexive on (A) and (I_A) is the identity relation, what is correct about (R\cup I_A)?Class 12Relations and FunctionsReflexive relationLevel 7Hard MathematicsIf (S={1,2}) and (A=\mathcal{P}(S)). On (A), (R={(X,Y):X\cup Y=S}). How many diagonal pairs must be added to make (R) reflexive?Class 12Relations and FunctionsReflexive relationLevel 7Expert MathematicsCan the union of two non-reflexive relations ever be reflexive?Class 12Relations and FunctionsReflexive relationLevel 8Hard MathematicsIf (R) is a reflexive relation on (A) and (S) is any relation on (A), which statement about (R \cup S) is correct?Class 12Relations and FunctionsReflexive relationLevel 8Hard MathematicsIf (R) and (S) are two reflexive relations on (A), which statement about (R\cup S) is correct?Class 12Relations and FunctionsReflexive relationLevel 9Medium MathematicsIf (R) is not symmetric, choose the correct statement about (R\cup R^{-1}).Class 12Relations and FunctionsTypes of relationsLevel 6Expert MathematicsFor any relation (R), which statement about (R\cup R^{-1}) is always true?Class 12Relations and FunctionsTypes of relationsLevel 6Expert MathematicsIf (R) is a symmetric relation on a set, choose the correct statement about (R\cup R^{-1}).Class 12Relations and FunctionsTypes of relationsLevel 6Expert MathematicsWhich pair of transitive relations gives a union that is not transitive?Class 12Relations and FunctionsTypes of relationsLevel 6Expert MathematicsIf (R) and (S) are reflexive relations, choose the correct statement about (R\cup S).Class 12Relations and FunctionsTypes of relationsLevel 6Expert MathematicsIf (R) and (S) are equivalence relations, which statement is correct for (R\cup S)?Class 12Relations and FunctionsTypes of relationsLevel 5Expert MathematicsIf (R) and (S) are transitive relations, choose the correct statement about (R\cup S).Class 12Relations and FunctionsTypes of relationsLevel 4Expert MathematicsIf (R) and (S) are symmetric relations, which statement about (R\cup S) is correct?Class 12Relations and FunctionsTypes of relationsLevel 4Expert MathematicsIf (R) and (S) are transitive relations, which statement is correct about (R\cup S)?Class 12Relations and FunctionsTypes of relationsLevel 6Hard MathematicsIf (R) and (S) are symmetric relations, choose the correct statement about (R\cup S).Class 12Relations and FunctionsTypes of relationsLevel 6Hard MathematicsIf (R) and (S) are relations, what is ((R\cup S)^{-1}) equal to?Class 12Relations and FunctionsIntroduction to RelationsLevel 3Expert MathematicsFor any relation (R), which property does (R\cup R^{-1}) always have?Class 12Relations and FunctionsIntroduction to RelationsLevel 2Expert MathematicsOn (A={1,2,3}), (R={(1,1),(2,2),(3,3),(1,2),(2,1)}) and (S={(1,1),(2,2),(3,3),(2,3),(3,2)}). Why is (R\cup S) not an equivalence relation?Class 12Relations and FunctionsIntroduction to RelationsLevel 1Expert MathematicsIs the union of two equivalence relations always an equivalence relation?Class 12Relations and FunctionsIntroduction to RelationsLevel 1Expert MathematicsIf (R) and (S) are transitive relations on (A), which statement about (R\cup S) is correct?Class 12Relations and FunctionsIntroduction to RelationsLevel 1Hard