设全集U=﹛1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16﹜,A=﹛x|x是被3整除余2的整数﹜,B=﹛x|x是被4整除的数﹜求A,B,A∪B,A∩B,CuB.
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设全集U=﹛1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16﹜,A=﹛x|x是被3整除余2的整数﹜,B=﹛x|x是被4整除的数﹜求A,B,A∪B,A∩B,CuB.
设全集U=﹛1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16﹜,A=﹛x|x是被3整除余2的整数﹜,
B=﹛x|x是被4整除的数﹜求A,B,A∪B,A∩B,CuB.
设全集U=﹛1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16﹜,A=﹛x|x是被3整除余2的整数﹜,B=﹛x|x是被4整除的数﹜求A,B,A∪B,A∩B,CuB.
A={5,8,11,14}B={4,8,12,16}AUB={4,5,8,11,12,14,16}A交B={8}CuB={1,2,3,4,6,7,9,10,12,13,15,16,}
设全集U={1,2,3,4,5,6,7,8,9},C u (A U B)={1,3},A ∩ (C u B)={2,4},求集合B
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对于一个集合A,由全集U中不属于集合A的所有元素组成的集合称为集合A的补集,那么集合A就一定是U的子集吗如果设全集U={1,2,3,4,5,6},A={6,7},那么A还有补集吗?
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设全集U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5}定义A*B={x∈U|x不∈A或x不∈B}设全集U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5}定义A*B={x∈U|x不∈A或x不∈B},则A*B等于?
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