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Logical Reasoning

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

MathematicsIf \(A\cap B'=\varnothing\), which statement is correct?Class 12SetsLevel 10Hard MathematicsIf A \ B = A, which statement is always true?Class 12SetsLevel 18Medium MathematicsIf (g\circ f) is onto, which statement about (f) is not always true?Class 12Relations and FunctionsReflexive relationLevel 27Expert MathematicsIf (g\circ f) is onto, which statement about (f) is not necessary?Class 12Relations and FunctionsOnto functionLevel 25Hard MathematicsIf (R) is transitive and ((a,b)), ((b,c)), ((c,d)) are in (R), which conclusion is correct?Class 12Relations and FunctionsTransitive relationLevel 13Medium MathematicsA relation (R) on a set (A) is symmetric. If ((x,y)\notin R), which statement is definitely true?Class 12Relations and FunctionsSymmetric relationLevel 12Hard MathematicsIf (R) is symmetric and ((a,b)\notin R), must ((b,a)\notin R) also be true?Class 12Relations and FunctionsSymmetric relationLevel 10Hard MathematicsIf (R) is symmetric and ((a,b)\in R), which statement may be false?Class 12Relations and FunctionsSymmetric relationLevel 11Easy