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

1)A∩C ={1,2,3}A∩C∪D={0,1,2,3,5}------------------------------------2)B\C= {-1,0}B\C∩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)   D\C = {5,0}           (D\C)∩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}