Найдите А ∩ В, если •а) А = (–3; 7), В = (1; 8);
•б) А = [0; 5], B = [5; 8];
2. Пусть А = {–4; –3; –2; –1; 0; 1; 2}, В = {4; 3; 2; 1; 0; –1; –2}, С = {x | –4 ≤ x < 5}. Найдите А ∪ В, А ∩ В, А ∪ С .
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