⒈设全集I={1,2,3,4,5,6},集合A={1,2,3,4},A∩B={1},CI(A∪B)={6},求集合B.⒉已知全集I={x|-3≤z≤3,x∈Z},CIA={-2,0,1},B={-1,1,2},C={0,1,2,3},求⑴(A∪B)∩C ⑵(A∩B)∪CIC⒊已知全集I={-1,2,(a^2)-a},A={-1,|a+1|},CIA={0},求a
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![⒈设全集I={1,2,3,4,5,6},集合A={1,2,3,4},A∩B={1},CI(A∪B)={6},求集合B.⒉已知全集I={x|-3≤z≤3,x∈Z},CIA={-2,0,1},B={-1,1,2},C={0,1,2,3},求⑴(A∪B)∩C ⑵(A∩B)∪CIC⒊已知全集I={-1,2,(a^2)-a},A={-1,|a+1|},CIA={0},求a](/uploads/image/z/196419-3-9.jpg?t=%E2%92%88%E8%AE%BE%E5%85%A8%E9%9B%86I%3D%7B1%2C2%2C3%2C4%2C5%2C6%7D%2C%E9%9B%86%E5%90%88A%3D%7B1%2C2%2C3%2C4%7D%2CA%E2%88%A9B%3D%7B1%7D%2CCI%28A%E2%88%AAB%29%3D%7B6%7D%2C%E6%B1%82%E9%9B%86%E5%90%88B.%E2%92%89%E5%B7%B2%E7%9F%A5%E5%85%A8%E9%9B%86I%3D%7Bx%7C-3%E2%89%A4z%E2%89%A43%2Cx%E2%88%88Z%7D%2CCIA%3D%7B-2%2C0%2C1%7D%2CB%3D%7B-1%2C1%2C2%7D%2CC%3D%7B0%2C1%2C2%2C3%7D%2C%E6%B1%82%E2%91%B4%EF%BC%88A%E2%88%AAB%EF%BC%89%E2%88%A9C+%E2%91%B5%28A%E2%88%A9B%29%E2%88%AACIC%E2%92%8A%E5%B7%B2%E7%9F%A5%E5%85%A8%E9%9B%86I%3D%7B-1%2C2%2C%28a%5E2%29-a%7D%2CA%3D%7B-1%2C%7Ca%2B1%7C%7D%2CCIA%3D%7B0%7D%2C%E6%B1%82a)
⒈设全集I={1,2,3,4,5,6},集合A={1,2,3,4},A∩B={1},CI(A∪B)={6},求集合B.⒉已知全集I={x|-3≤z≤3,x∈Z},CIA={-2,0,1},B={-1,1,2},C={0,1,2,3},求⑴(A∪B)∩C ⑵(A∩B)∪CIC⒊已知全集I={-1,2,(a^2)-a},A={-1,|a+1|},CIA={0},求a
⒈设全集I={1,2,3,4,5,6},集合A={1,2,3,4},A∩B={1},CI(A∪B)={6},求集合B.
⒉已知全集I={x|-3≤z≤3,x∈Z},CIA={-2,0,1},B={-1,1,2},C={0,1,2,3},求⑴(A∪B)∩C ⑵(A∩B)∪CIC
⒊已知全集I={-1,2,(a^2)-a},A={-1,|a+1|},CIA={0},求a的值.
⒈设全集I={1,2,3,4,5,6},集合A={1,2,3,4},A∩B={1},CI(A∪B)={6},求集合B.⒉已知全集I={x|-3≤z≤3,x∈Z},CIA={-2,0,1},B={-1,1,2},C={0,1,2,3},求⑴(A∪B)∩C ⑵(A∩B)∪CIC⒊已知全集I={-1,2,(a^2)-a},A={-1,|a+1|},CIA={0},求a
1.B={1,5}
2.I={-3,-2,-1,0,1,2,3}
A={-3,-1,2,3}
(1)A∪B={-3,-1,1,2,3}
(A∪B)∩C={1,2,3}
(2)A∩B={-1,2}
CIC={-3,-2,-1}
(A∩B)∪CIC={-3,-2,-1,2}
3.∵CIA={0}
∴0∈I
且0不属于A
则a²-a=0
且|a+1|≠0
解得:a=0 或 a=1
若a=0,则I={-1,2,0} A={-1,1}
不满足A是I的子集
若a=1,则I={-1,2,0} A={-1,2}
满足CIA={0}
∴a=1