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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।

MathematicsWhich option correctly explains (\mathbb{Q}\subseteq \mathbb{R})?Class 12SetsLevel 8Easy MathematicsOn (\mathbb{Q}\setminus{0}), (a*b=\frac{ab}{2}). What is the identity element of this operation?Class 12Relations and FunctionsBinary operationsLevel 30Expert MathematicsOn (\mathbb{Q}-{0}), (a*b=\frac{ab}{5}). What is the inverse of (10)?Class 12Relations and FunctionsBinary operationsLevel 28Hard MathematicsOn (\mathbb{Q}-{0}), (a*b=\frac{ab}{5}). Which is the identity element?Class 12Relations and FunctionsBinary operationsLevel 28Hard MathematicsOn (\mathbb{Q}\setminus{0}), (a*b=\frac{a}{b}). Is this operation associative?Class 12Relations and FunctionsBinary operationsLevel 28Expert MathematicsOn (\mathbb{Q}\setminus{0}), (a*b=\frac{a}{b}). In which property does this operation fail?Class 12Relations and FunctionsBinary operationsLevel 28Expert MathematicsOn (\mathbb{Q}\setminus{0}), (a*b=\frac{ab}{2}). What will be the inverse of (a)?Class 12Relations and FunctionsBinary operationsLevel 30Hard MathematicsOn (\mathbb{Q}\setminus{0}), (a*b=\frac{ab}{2}). What is the identity element?Class 12Relations and FunctionsBinary operationsLevel 30Hard MathematicsOn (A=\mathbb{Q}\setminus{0}), (a*b=\frac{a}{b}). Is it a binary operation?Class 12Relations and FunctionsBinary operationsLevel 29Hard MathematicsOn rational numbers, (a*b=\frac{a+b}{2}) is given. Why is this operation closed?Class 12Relations and FunctionsBinary operationsLevel 28Medium MathematicsOn rational numbers, what type is (a*b=\frac{a+b}{2})?Class 12Relations and FunctionsBinary operationsLevel 28Easy MathematicsOn the set (\mathbb{Q}), (a*b=a+b) is defined. Why is it a binary operation?Class 12Relations and FunctionsBinary operationsLevel 28Easy MathematicsIf (f:\mathbb{Q}\to\mathbb{Q}) and (f(x)=x^2), is (f) one-one?Class 12Relations and FunctionsOne-one functionLevel 22Medium MathematicsIf (f:\mathbb{Q}\to\mathbb{Q}) and (f(x)=\frac{x+2}{3}), what type of function is (f)?Class 12Relations and FunctionsOne-one functionLevel 22Medium MathematicsIf (f:\mathbb{Q}\to\mathbb{Q}) and (f(x)=x^2), what is the correct conclusion?Class 12Relations and FunctionsFunctionsLevel 21Expert MathematicsIf (f:\mathbb{Q}\to\mathbb{Q}) and (f(x)=x+1), what type of function is it?Class 12Relations and FunctionsFunctionsLevel 21Expert MathematicsOn non-zero rational numbers, (aRb) holds when (\frac{a}{b}>0). Which is the equivalence class of (-\frac{3}{5})?Class 12Relations and FunctionsEquivalence relationLevel 18Medium MathematicsOn R, define aRb if and only if a−b is rational. What is the equivalence class of √2?Class 12Relations and FunctionsTypes of relationsLevel 4Easy MathematicsOn real numbers, (aRb) iff (a-b\in\mathbb{Q}). Which of the following classes is equal to ([0])?Class 12Relations and FunctionsIntroduction to RelationsLevel 2Expert