Question

дано: A={1,2,3,4,5,6,7,8}B={-1,0,1,2,3}C={3,2,1}D={1,2,3,5,0}
найти 1) А∩С∪D, 2) (B/C)∩D, 3) (A∪B)/(D∩C), 4) (D/C)*A, 5)(A∪D)/С∩B

Answer 1

1)
A∩C ={1,2,3}
A∩C∪D={0,1,2,3,5}
------------------------------------
2)
BC= {-1,0}
BC∩D={0}
---------------------------------
3) A∪B={-1,0,1,2,3,4,5,6,7,8}
D∩C= {1,2,3}
  ( A∪B)(D∩C)={-1,0,4,5,6,7,8}
------------------------------------
4)   DC = {5,0}
           (DC)∩A={5}
--------------------------------------
5)  A∪D={0,1,2,3,4,5,6,7,8}
    C∩B={1,2,3}
      (A∪D)(C∩B) = {0,4,5,6,7,8}