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Multiples

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

MathematicsIf U = {1, 2, ..., 45} and A = {x : x ∈ U, 9 divides x}, how many elements divisible by 3 are in A'?Class 12SetsLevel 21HardMathematicsIf (a*b=a-b) is taken on the set of multiples of (5), what is the correct statement about closure?Class 12Relations and FunctionsBinary operationsLevel 28MediumMathematicsIf (a*b=a+b) is taken on the set of multiples of (3), what type of operation is it?Class 12Relations and FunctionsBinary operationsLevel 28MediumMathematicsIf (f:\mathbb{Z}\to\mathbb{Z}), (f(n)=3n), why is (f) not onto?Class 12Relations and FunctionsOnto functionLevel 26EasyMathematicsIf A = {x : x ∈ ℕ and x is a multiple of 8}, what is the nature of the number of elements in A?Class 12SetsLevel 6EasyMathematicsWhich is the correct set-builder form for Q₁ = {3, 6, 9, 12, 15}?Class 12SetsLevel 3EasyMathematicsWhich is the roster form of F₁ = {x : x is a positive multiple of 3 or 5, and x < 20}?Class 12SetsLevel 2EasyMathematicsIn the relation on (A={1,2,3,4,5,6}) based on being multiples of (3) or not multiples of (3), what is the equivalence class of (5)?Class 12Relations and FunctionsEquivalence relationLevel 17MediumMathematicsOn (A={1,2,3,4,5,6}), (R={(a,b):a) and (b) are both multiples of (3)(}). What is the nature of this relation?Class 12Relations and FunctionsTransitive relationLevel 15ExpertMathematicsOn (A={1,2,4,8}), (aRb) is defined when (b) is a multiple of (a). What is the nature of this relation?Class 12Relations and FunctionsTransitive relationLevel 13ExpertMathematicsFor the relation on A={1,2,3,4,5,6} defined by “a and b are both multiples of 3 or both are not multiples of 3”, which statement is true?Class 12Relations and FunctionsTypes of relationsLevel 4Expert