выполните данные операции и изобразите их с помощью кругов Эйлера. дано: А={1,2,3,8,9}, В ={1,4,5,2,6,8,0,9,3}. найти :1)АUА, 2) АnА, 3) А/В ,4) В/А
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1) AUA = A = {1,2,3,8,9}2) A∩A = A = {1,2,3,8,9}
3)A\B = ∅
4)B\A = {0,4,5,6}
5) AUB = B = {0,1,2,3,4,5,6,8,9}
6) A∩B = A = {1,2,3,8,9}