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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 (A=[a_{ij}]*{3\times3}), (a*{ij}=1) when (i=j), and (a_{ij}=0) when (i\ne j), what type of matrix is (A)?Class 12MatrixIntroduction to matricesEasy MathematicsOn (\mathbb{R}), (a*b=a+b+ab). Which condition is necessary and sufficient for (a*b=b)?Class 12Relations and FunctionsBinary operationsExpert MathematicsOn (\mathbb{R}), (a*b=a+b-ab). For (a*b=0), what is (b) equal to?Class 12Relations and FunctionsBinary operationsHard MathematicsIn which situation will a function (f:A\to B) definitely not be one-one?Class 12Relations and FunctionsOne-one functionEasy MathematicsOn (A={1,2,3}), (R={(a,b):ab\text{ is even}}). Is (R) symmetric?Class 12Relations and FunctionsSymmetric relationMedium MathematicsOn (A={1,2,3,4}), (R={(a,b):a=b+1}). Is (R) reflexive?Class 12Relations and FunctionsReflexive relationMedium MathematicsOn (A={1,2,3}), (R={(a,b):a^2-b^2=0}). Why is (R) reflexive?Class 12Relations and FunctionsReflexive relationMedium MathematicsOn (A={1,2,3}), (R={(a,b):|a-b|\ge 0}). Choose the correct answer about (R).Class 12Relations and FunctionsReflexive relationMedium MathematicsIf (A={1,2,3,4,5}), how many equivalence relations have (1) and (2) in the same class but (3) not in that class?Class 12Relations and FunctionsIntroduction to RelationsExpert