12.设全集 U = {1.2.3.4.5.6.7.8}.A = {3.4.5} B = {4.7.8}, 求:(CU A)∩(CU B), (CU A)∪(CU B), CU, CU . ((CU A)∩(CU B)= CU={1,2,6}, (CU A)∪(CU B)=CU ={1,2,3,5,6,7,8}) 查看更多

 

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2、设全集U={1,2,3,4,5,6,7},P={1,2,3,4,5},Q={3,4,5,6,7},则P∩(CUQ)=(  )

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1、设全集U={1,2,3,4,5,6,7},集合A={1,3,5},B={2,5,7},则CU(A∪B)=(  )

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1、设全集U={1,2,3,4,5,6,7,8},集合A={1,2,3,5},B={2,4,6},则图中的阴影部分表示的集合为(  )

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1、设全集U={1,2,3,4,5,6},A={4,5},B={3,4},则?U(A∪B)=(  )

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1、设全集U={1,2,3,4,5,6,7,8},集合S={1,3,5},T={3,6},则CU(S∪T)等于(  )

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