8. Даны множества A={2; –2; 7; 8; –9; 0}; B={12; –2; –7; 8; 9; 0; –9}; C={1; –2; –7; 9;...

Question

8. Даны множества A={2; –2; 7; 8; –9; 0}; B={12; –2; –7; 8; 9; 0; –9};
C={1; –2; –7; 9; –10}. Найдите:
a) A\B; б) A\C; в) C\B; г) B\A;
д) B\C; e) (A∩B)∩C; ж) (B\C)∪ A; з) C∪(A\B).

Answer 1

A={2; –2; 7; 8; –9; 0}; B={12; –2; –7; 8; 9; 0; –9}; C={1; –2; –7; 9; –10}. 

a) A\B={2; 7};
б) A\C={2; 7; 8; –9; 0};
в) C\B={1; –10};
г) B\A={12; –7; 9;}; 
д) B\C={12; 8; 0; –9};
e) (A∩B)∩C={–2};
ж) (B\C)∪ A={12; 2; –2; 7; 8; –9; 0};
з) C∪(A\B)={1; –2; –7; 9; –10; 2; 7}.