设全集U={1,2,3,4,5,6,7,8,9},Cu(A∪B)={1.3},A∩(CuB)={2,4}.求集合B 这道题怎么算“?
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设全集U={1,2,3,4,5,6,7,8,9},Cu(A∪B)={1.3},A∩(CuB)={2,4}.求集合B这道题怎么算“?设全集U={1,2,3,4,5,6,7,8,9},Cu(A∪B)={1
设全集U={1,2,3,4,5,6,7,8,9},Cu(A∪B)={1.3},A∩(CuB)={2,4}.求集合B 这道题怎么算“?
设全集U={1,2,3,4,5,6,7,8,9},Cu(A∪B)={1.3},A∩(CuB)={2,4}.求集合B 这道题怎么算“?
设全集U={1,2,3,4,5,6,7,8,9},Cu(A∪B)={1.3},A∩(CuB)={2,4}.求集合B 这道题怎么算“?
Cu(A∪B)={1.3}
R- A∪B = {1,3}
A∪B ={2,4,5,6,7,8,9}
A∩(CuB)={2,4}
A∩(R-B) = {2,4}
A - A∩B = {2,4}
B = A∪B - (A - A∩B)
= {2,4,5,6,7,8,9}
- {2,4}
= {5,6,7,8,9} #
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