Страница 169 номер 424, ГДЗ по алгебре за 9 класс к учебнику Алимова с ответами и решением
Найти \(A \setminus B\) и \(B \setminus A\), если: 1) \(A = \{-4;\ 5;\ 6\}\), \(B = \{-5;\ -4;\ -3;\ -2\}\); 2) \(A = \{1;\ 2;\ 3\}\), \(B = \{-1;\ 0;\ 1\}\); 3) \(A = \{-1;\ 0;\ 1;\ 2;\ 3\}\), \(B = \{1;\ 2;\ 3\}\); 4) \(A = \{5;\ 6;\ 7\}\), \(B = \{-5;\ 5;\ -6;\ 6\}\).
1) \(A = \left\{-4; 5; 6\right\}\), \(B = \left\{-5; -4; -3; -2\right\}\)
\(A\backslash B = \left\{5; 6\right\}, B\backslash A = \left\{-5; -3; -2\right\};\)
2) \(A = \left\{1; 2; 3\right\}\), \(B = \left\{-1; 0; 1\right\}\)
\(A\backslash B = \left\{2; 3\right\}, B\backslash A = \left\{-1; 0\right\};\)
3) \(A = \left\{-1; 0; 1; 2; 3\right\}\), \(B = \left\{1; 2; 3\right\}\)
\(A\backslash B = \left\{-1; 0\right\}, B\backslash A = \varnothing;\)
4) \(A = \left\{5; 6; 7\right\}\), \(B = \left\{-5; 5; -6; 6\right\}\)
\(A\backslash B = \left\{7\right\}, B\backslash A = \left\{-5; -6\right\}.\)
