Angie123450 Angie123450 24-03-2024 Matemáticas contestada Si: A = {x ∈ N / 9 ≤ x2 ≤ 300} B = {x ∈ N / x ≤ 3x – 2 ≤ 20} Hallar n[(A ∪ B) – (A ∩ B)]