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Class 10 · Mathematics
→If A ∩ B = ∅ and A ∪ B = A ∪ C, which conclusion must be true?
Class 10 · Mathematics
→Let U = {1, 2, ..., 50}, A = {x ∈ U | 2 divides x}, and B = {x ∈ U | 5 divides x}. How many elements are in A \ B?
Class 10 · Mathematics
→If A ∪ B = A ∩ C, which conclusion must be true?
Class 12 · Mathematics
→If A = {1, 2, 4, 8, 16, 32} and B = {x | x ∈ A, x < 10}, what is A \ B?
Class 10 · Mathematics
→If A ∩ B ⊆ A \ C, which statement must be true?
Class 10 · Mathematics
→In which situation can A \ B = A ∩ B be true?
Class 10 · Mathematics
→If A ⊆ B, what is (C \ B) ∩ A?
Class 10 · Mathematics
→If A = {x ∈ R | x² − 9 = 0} and B = {x ∈ R | x² − 6x + 9 = 0}, what is A ∪ B?
Class 10 · Mathematics
→If A and B are finite sets, |A ∪ B| = 65, |A ∩ B| = 18, and |A| = 39, what is |B \ A|?
Class 10 · Mathematics
→If A ∪ B = B ∪ C and A ∩ B = B ∩ C, which conclusion must be true?
Class 10 · Mathematics
→Using (A \ B) ∪ (A ∩ B) = A, how are these two parts of A related?
Class 10 · Mathematics
→If A = {1, 2, 3, 4, 5, 6}, B = {2, 4, 6, 8}, and C = {1, 4, 6, 9}, what is A \ (B ∩ C)?
Class 10 · Mathematics
→If A \ (B ∩ C) = ∅, which statement must be true?
Class 10 · Mathematics
→If A ∩ B = B ∩ C = C ∩ A = ∅, |A| = 9, |B| = 11, and |C| = 13, what is |A ∪ B ∪ C|?
Class 10 · Mathematics
→If A = {x ∈ N : x ≤ 40 and x is a perfect square} and B = {x ∈ N : x ≤ 40 and x is even}, where N denotes the positive natural numbers, what is A ∩ B?
Class 10 · Mathematics
→If A ∪ B = A and A \ B = ∅, which conclusion is correct?
Class 10 · Mathematics
→If A ⊆ B and C ⊆ D, which inclusion must be true?
Class 10 · Mathematics
→If A △ B = (A \ B) ∪ (B \ A), |A △ B| = 34, and |A ∪ B| = 51, what is |A ∩ B|?
Class 10 · Mathematics
→If |A| = 41, |B| = 36, and |A \ B| = 19, what is |A ∪ B|?
Class 10 · Mathematics
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