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Class 10 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsIf A ⊆ B in a universal set U, which of the following relations is always true?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf U has n elements and A has r elements, how many elements are in A′?Class 10SetsComplement of a Set and Its PropertiesLevel 19Easy MathematicsIf U = {1, 2, ..., 15}, A = {1, 4, 9}, and B = {2, 4, 6, 8, 10, 12, 14}, how many elements are in (A ∩ B)′?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf the universal set is U = {1, 2, ..., 100} and A = {x ∈ U : x is a perfect square}, what is the value of |A′|?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf U = R, A = (-3, 4], and B = [1, 6), what is A' ∩ B'?Class 10SetsComplement of a Set and Its PropertiesLevel 10Hard MathematicsIf U = R, A = [-2, 5) and B = (0, 7], what is (A ∪ B)'?Class 10SetsComplement of a Set and Its PropertiesLevel 19Hard MathematicsIf U = {1, 2, ..., 16}, A = {1, 2, 4, 8, 16}, and B = {2, 4, 6, 8, 10, 12, 14, 16}, then B - A is equal to:Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf U = {1, 2, ..., 30} and A = {x : x is divisible by 2 or 3}, how many elements are in A'?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf U = {x : x ∈ Z, -3 ≤ x ≤ 6} and A = {x : x ≥ 2}, what is A'?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf U = {1, 2, ..., 20} and A = {x : x is divisible by 3}, how many elements are in A'?Class 10SetsComplement of a Set and Its PropertiesLevel 10Medium MathematicsIf U = {1, 2, ..., 18} and A = {2, 4, 6, 8, 10, 12, 14, 16, 18}, what is (A')'?Class 10SetsComplement of a Set and Its PropertiesLevel 10Easy MathematicsIf (A ∪ B)' = ∅ and A ∩ B = ∅, then B is equal to what?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf U = {x : x ∈ N, x ≤ 100} and A = {x : x is not divisible by 2}, then A' is the set of what?Class 10SetsComplement of a Set and Its PropertiesLevel 19Easy MathematicsIf U = {1, 2, ..., 25}, A = {x : x is odd} and B = {x : x is a perfect square}, what is |A' ∩ B|?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf \(A\cap B=A\cap C\) and \(A'\cap B=A'\cap C\), what is the correct conclusion about \(B\) and \(C\)?Class 10SetsComplement of a Set and Its PropertiesLevel 19Hard MathematicsIf \(U=\mathbb{R}\) and \(A=\{x:x^2<16\}\), what is \(A'\)?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf the universal set is \(U=\mathbb{R}\) and \(A=\{x\in\mathbb{R}:x<2\text{ or }x\ge8\}\), what is \(A'\)?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium MathematicsIf \(U=\{1,2,\ldots,10\}\), \(A=\{1,2,3,4\}\), and \(B=\{3,4,5,6\}\), what is \(A'\Delta B'\) equal to?Class 10SetsComplement of a Set and Its PropertiesLevel 19Hard MathematicsIf \(U=\{x:x\in\mathbb{Z},0\le x\le15\}\) and \(A=\{x:x\text{ is prime}\}\), which element must be in \(A'\)?Class 10SetsComplement of a Set and Its PropertiesLevel 19Easy MathematicsIn a universal set \(U\) of 120 students, 70 study mathematics, 65 study physics, and 30 study both. How many study neither mathematics nor physics?Class 10SetsComplement of a Set and Its PropertiesLevel 19Medium