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Class 12 Relations Functions

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

MathematicsOn the set (\mathbb{R}\setminus{-1}), (a*b=a+b+ab) is defined. What is the inverse of (a)?Class 12Relations and FunctionsBinary operationsHardMathematicsIf (A=\mathbb{R}\setminus{1}) has the operation (a*b=a+b-ab), what is the identity element for this operation?Class 12Relations and FunctionsBinary operationsHardMathematicsIf the operation (a*b) on (S={0,1,2,3}) is defined as the remainder when (a+b) is divided by (4), then is this operation closed on (S)?Class 12Relations and FunctionsBinary operationsMediumMathematicsLet (f:\mathbb{R}\to\mathbb{R}), where (f(x)=x^3-6x^2+12x-5). Choose the correct statement about (f) being onto.Class 12Relations and FunctionsReflexive relationExpertMathematicsLet (f:\mathbb{R}\to[0,\infty)) be defined by (f(x)=x^2+2x+1). When will (f) be considered onto?Class 12Relations and FunctionsReflexive relationExpert

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