设全集U={x|x}∈N*,且X≤10},其子集A={1,2,4,5,9},B={4,6,7,8,10} 求A∩B,A∪B.里面C是怎么来的∵U={x|x}∈N*,且X≤10}={1,2,3,4,5,6,7,8,9,10}A={1,2,4,5,9}B={4,6,7,8,10}C={3,5,7}这里的"C"是怎么得到?我的书上这道题标准
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![设全集U={x|x}∈N*,且X≤10},其子集A={1,2,4,5,9},B={4,6,7,8,10} 求A∩B,A∪B.里面C是怎么来的∵U={x|x}∈N*,且X≤10}={1,2,3,4,5,6,7,8,9,10}A={1,2,4,5,9}B={4,6,7,8,10}C={3,5,7}这里的](/uploads/image/z/5151542-14-2.jpg?t=%E8%AE%BE%E5%85%A8%E9%9B%86U%3D%7Bx%7Cx%7D%E2%88%88N%2A%2C%E4%B8%94X%E2%89%A410%7D%2C%E5%85%B6%E5%AD%90%E9%9B%86A%3D%7B1%2C2%2C4%2C5%2C9%7D%2CB%3D%7B4%2C6%2C7%2C8%2C10%7D+%E6%B1%82A%E2%88%A9B%2CA%E2%88%AAB.%E9%87%8C%E9%9D%A2C%E6%98%AF%E6%80%8E%E4%B9%88%E6%9D%A5%E7%9A%84%E2%88%B5U%3D%7Bx%7Cx%7D%E2%88%88N%2A%2C%E4%B8%94X%E2%89%A410%7D%3D%7B1%2C2%2C3%2C4%2C5%2C6%2C7%2C8%2C9%2C10%7DA%3D%7B1%2C2%2C4%2C5%2C9%7DB%3D%7B4%2C6%2C7%2C8%2C10%7DC%3D%7B3%2C5%2C7%7D%E8%BF%99%E9%87%8C%E7%9A%84%22C%22%E6%98%AF%E6%80%8E%E4%B9%88%E5%BE%97%E5%88%B0%3F%E6%88%91%E7%9A%84%E4%B9%A6%E4%B8%8A%E8%BF%99%E9%81%93%E9%A2%98%E6%A0%87%E5%87%86)
设全集U={x|x}∈N*,且X≤10},其子集A={1,2,4,5,9},B={4,6,7,8,10} 求A∩B,A∪B.里面C是怎么来的∵U={x|x}∈N*,且X≤10}={1,2,3,4,5,6,7,8,9,10}A={1,2,4,5,9}B={4,6,7,8,10}C={3,5,7}这里的"C"是怎么得到?我的书上这道题标准
设全集U={x|x}∈N*,且X≤10},其子集A={1,2,4,5,9},B={4,6,7,8,10} 求A∩B,A∪B.里面C是怎么来的
∵U={x|x}∈N*,且X≤10}
={1,2,3,4,5,6,7,8,9,10}
A={1,2,4,5,9}
B={4,6,7,8,10}
C={3,5,7}
这里的"C"是怎么得到?
我的书上这道题标准答案里C的确写的是{3,5,7} 是不是印错了呢..
设全集U={x|x}∈N*,且X≤10},其子集A={1,2,4,5,9},B={4,6,7,8,10} 求A∩B,A∪B.里面C是怎么来的∵U={x|x}∈N*,且X≤10}={1,2,3,4,5,6,7,8,9,10}A={1,2,4,5,9}B={4,6,7,8,10}C={3,5,7}这里的"C"是怎么得到?我的书上这道题标准
A∩B=(4)
A∪B=(1,2,4,5,6,7,8,9,10)
C应该是A,B的补集得(3)才对
肯定看错了哇
C不会是下一到题的答案吧
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