作业帮设全集U={x∈N/2≤x≤30},集合A={x/x=2n,n∈N+,且n≤15},B=｛x/x=3n+1,n∈N+,且n≤9｝,C=｛x/x是小于30的质数｝,则[Cu(A∪B）]∩C=————————,
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![设全集U={x∈N/2≤x≤30},集合A={x/x=2n,n∈N+,且n≤15},B=｛x/x=3n+1,n∈N+,且n≤9｝,C=｛x/x是小于30的质数｝,则[Cu(A∪B）]∩C=————————,](/uploads/image/z/2743992-0-2.jpg?t=%E8%AE%BE%E5%85%A8%E9%9B%86U%3D%7Bx%E2%88%88N%2F2%E2%89%A4x%E2%89%A430%7D%2C%E9%9B%86%E5%90%88A%3D%7Bx%2Fx%3D2n%2Cn%E2%88%88N%2B%2C%E4%B8%94n%E2%89%A415%7D%2CB%3D%EF%BD%9Bx%2Fx%3D3n%2B1%2Cn%E2%88%88N%2B%2C%E4%B8%94n%E2%89%A49%EF%BD%9D%2CC%3D%EF%BD%9Bx%2Fx%E6%98%AF%E5%B0%8F%E4%BA%8E30%E7%9A%84%E8%B4%A8%E6%95%B0%EF%BD%9D%2C%E5%88%99%5BCu%28A%E2%88%AAB%EF%BC%89%5D%E2%88%A9C%3D%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%2C)
设全集U={x∈N/2≤x≤30},集合A={x/x=2n,n∈N+,且n≤15},B=｛x/x=3n+1,n∈N+,且n≤9｝,C=｛x/x是小于30的质数｝,则[Cu(A∪B）]∩C=————————,
设全集U={x∈N/2≤x≤30},集合A={x/x=2n,n∈N+,且n≤15},B=｛x/x=3n+1,n∈N+,且n≤9｝,C=｛x/x是小于
30的质数｝,则[Cu(A∪B）]∩C=————————,
设全集U={x∈N/2≤x≤30},集合A={x/x=2n,n∈N+,且n≤15},B=｛x/x=3n+1,n∈N+,且n≤9｝,C=｛x/x是小于30的质数｝,则[Cu(A∪B）]∩C=————————,
因为A={x/x=2n,n∈N+,且n≤15} 所以A={2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};因为B=｛x/x=3n+1,n∈N+,且n≤9｝,所以B=｛4,7,10,13,16,19,22,25,28｝,所以A∪B={2,4,6,7,8,10,12,13,14,16,18,19,20,22,24,25,26,28,30},所以Cu(A∪B）={3,5,9,11,15,17,21,23,27,29},因为C=｛x/x是小于30的质数｝,所以C={2,3,5,7,11,13,17,19,23,29},所以[Cu(A∪B）]∩C={3,5,11,17,23,29}
取4 到30之间的质数！！！
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