Контрольные задания > Даны множества A = {12; 14; 15; 18; 26}, B = {7; 12; 18; 44; 39} и C = {15; 18; 26; 39}. Найдите: A ∩ C, A ∩ (B ∪ C), A ∪ C, A ∩ B, B ∪ C, A ∩ (B ∩ C), B ∩ C.
Вопрос:

Даны множества A = {12; 14; 15; 18; 26}, B = {7; 12; 18; 44; 39} и C = {15; 18; 26; 39}. Найдите: A ∩ C, A ∩ (B ∪ C), A ∪ C, A ∩ B, B ∪ C, A ∩ (B ∩ C), B ∩ C.

Ответ:

1. A ∩ C = {15, 18, 26}. 2. B ∪ C = {7, 12, 15, 18, 26, 39, 44}. 3. A ∩ (B ∪ C) = {12, 14, 15, 18, 26}. 4. A ∪ C = {12, 14, 15, 18, 26, 39}. 5. A ∩ B = {12, 18}. 6. A ∩ (B ∩ C) = {18}. 7. B ∩ C = {18, 39}.

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