Ответы на вопрос:
{ 1,2,3,4,5,6,7,8}
(- А -V -B)={6,7,8}^ {1,2,5,7}={1,3,5,6,7,8}
(-C Л D)={2,4,6,8}^{1,2,4,5,7,8}={2,4,8}
(-A V B ) V(C Л D)={1,3,5,6,7,8} V {2,4,8}={1,2,3,4,5,6,7,8
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