答 {3,5,11,13};{7,11,13,19}.因E={2,3,5,7,11,13,17,19},由A-∩B-=={2,17},則A∪B={3,5,7,11,13,19},故A∩B=A∪B-((A∩B-)∪(B∩A-))={11,13},故A=(A∩B-)∪(A∩B)={3,5,11,13},B=(B∩A-)∪(A∩B)={7,11,13,19}. (本文共 178 字 , 1 張圖 ) [閱讀本文] >>
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 答 {3,5,11,13};{7,11,13,19}.因E={2,3,5,7,11,13,17,19},由A-∩B-=={2,17},則A∪B={3,5,7,11,13,19},故A∩B=A∪B-((A∩B-)∪(B∩A-))={11,13},故A=(A∩B-)∪(A∩B)={3,5,11,13},B=(B∩A-)∪(A∩B)={7,11,13,19}. (本文共 178 字 , 1 張圖 ) [閱讀本文] >>