U123456的精选

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已知全集U={1,2,3,4,5,6},*P={1,2,3,4},Q={3,4,5,6},则PA.{1,2}...

已知全集U={1,2,3,4,5,6},*P={1,2,3,4},Q={3,4,5,6},则PA.{1,2}...

2023-02-23
问题详情:已知全集U={1,2,3,4,5,6},*P={1,2,3,4},Q={3,4,5,6},则PA.{1,2}       B.{3,4}       C.        D.1【回答】A知识点:常用逻辑用语题型:选择题...
已知A,B均为*U={1,2,3,4,5,6}的子集,且A∩B={3},(∁UB)∩A={1},(∁UA)∩...

已知A,B均为*U={1,2,3,4,5,6}的子集,且A∩B={3},(∁UB)∩A={1},(∁UA)∩...

2019-05-10
问题详情:已知A,B均为*U={1,2,3,4,5,6}的子集,且A∩B={3},(∁UB)∩A={1},(∁UA)∩(∁UB)={2,4},则B∩(∁UA)=. 【回答】{5,6}解析:由题意及韦恩图得B∩(∁UA)={5,6}.知识点:*与函数的概念题型:填空题...