• 设集合U={1,2,3,4,5},A={1,2,3},B={2,3,4}则?U(A∩B)=试题及答案-单选题-云返教育

    • 试题详情

      设集合U={1,2,3,4,5},A={1,2,3},B={2,3,4}则?U(A∩B)=         

      试题解答


      B
      集合U={1,2,3,4,5},A={1,2,3},B={2,3,4}
      所以A∩B={1,2,3}∩{2,3,4}={2,3};
      ?
      U(A∩B)={1,4,5};
      故选B.
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