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Class 12 Mathematics के इस tag से जुड़े questions।
Class 12 · Mathematics
→If U = {1, 2, ..., 45} and A = {x : x ∈ U, 9 divides x}, how many elements divisible by 3 are in A'?
Class 12 · Mathematics
→If \(A\cap B'=\varnothing\), which statement is correct?
Class 12 · Mathematics
→If A ∩ B′ = A, which of the following conclusions must be true?
Class 12 · Mathematics
→If \(U=\{x:x\in\mathbb N, x\le 50\}\) and \(A=\{x:x\text{ is not a prime number}\}\), then \(A'\) is the set of what?
Class 12 · Mathematics
→If \((A\cap B')\cup(A'\cap B')=B'\), this is an example of which rule?
Class 12 · Mathematics
→If \(U=\mathbb{R}\), \(A=(-5,2]\), and \(B=[-1,6)\), what is \((A\cap B)'\)?
Class 12 · Mathematics
→According to De Morgan's law, what is the value of \((A\cap B)^c\)?
Class 12 · Mathematics
→If A ⊆ B', which statement is correct?
Class 12 · Mathematics
→Let U = {1, 2, ..., 12}, A = {2, 4, 6, 8, 10, 12}, and B = {3, 6, 9, 12}. What is (A ∪ B)′?
Class 12 · Mathematics
→In a Venn diagram, n(A−B)=31, n(B−A)=37, n(A∩B)=24, and n((A∪B)ᶜ)=18. What is n(Aᶜ)?
Class 12 · Mathematics
→In a survey of 50 people, 28 use a mobile, 20 use a computer, and 10 use both. How many people use neither device?
Class 12 · Mathematics
→According to De Morgan’s law, what is (A∪B)′ equal to?
Class 12 · Mathematics
→If A ⊆ B ⊆ U, which statement is always true?
Class 12 · Mathematics
→If \(U=\mathbb{N}\) and \(A=\{x:x\in\mathbb{N},\ x\le 100\}\), what is \(A'\)?
Class 12 · Mathematics
→On (A={1,2,3,4,5}), (R) has classes ({1,2,3},{4,5}). Why is the complement of (R) not an equivalence relation?
Class 12 · Mathematics
→On (A={1,2,3,4,5}), (R) has classes ({1,2},{3},{4,5}). How many pairs are in the complement of (R)?
Class 12 · Mathematics
→On (A={1,2,3,4,5,6}), (aRb) holds when (a) and (b) have the same remainder modulo (3). What type of relation is the complement of (R)?
Class 12 · Mathematics
→If (R) is symmetric, what can be said about the complement of (R) with respect to (A\times A)?
Class 12 · Mathematics
→If (A) is non-empty and (R) is a reflexive relation on (A), what is correct about (A \times A-R)?
Class 12 · Mathematics
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