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    26．已知集合U={1,2,3,4,5,6,7}, A={2,4,5,7},B={3,4,5},则(uA)∪(uB)=(A){1,6} (B){4,5} (C){1,2,3,4,5,7} (D){1,2,3,6,7}解析:已知集合.(uA) ={1.3.6}.(uB) ={1.2.6.7}.则(uA)∪(uB)＝{1.2.3.6.7}.选D. 【查看更多】

     

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    已知集合U={1,2,3,4,5,6,7}, A={2,4,5,7},B={3,4,5},则=___     _

     

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    已知集合U={1,2,3,4,5,6,7}, A={2,4,5,7},B={3,4,5},则(uA)∪(uB)=         .

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    已知集合U={1,2,3,4,5,6,7}, A={2,4,5,7},B={3,4,5},则(uA)∪(uB)=

    (A){1,6}        (B){4,5}         (C){1,2,3,4,5,7}              (D){1,2,3,6,7}

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    已知集合U={1,2,3,4,5,6,7}，A={2,4,5,7}，B={3,4,5}，则(A)∩(B)等于(    )

    A.{1,6}               B.{4,5}                  C.{2,3,4,5,7}           D.{1,2,3,6,7}

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    已知集合U={1,2,3,4,5,6,7}, A={2,4,5,7},B={3,4,5},则(uA)∪(uB)=          .

     

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