设u={1.2.3.4.5.6.7.8.9.10},a={1.2.3.4.5}b={8.6.4.5.3}求aub aub
设u={1.2.3.4.5.6.7.8.9.10},a={1.2.3.4.5}b={8.6.4.5.3}求aub aub
1A={1.2.3.4},B={3.4.5},全集U=AUB,那么集合Cu(AUB)中有多少个元素
设A={3,5,6,8},B={4,5,7,8},求AnB,AUB
设全集U={一1,0,1,2,3,4,5},集A={1,2},集B={2,3,5},求①AUB ②Cu(AUB)
已知全集U={1.2.3.4.5}若AUB=U,A∩B≠空集,A∩CuB={1.2}
设集合U={1,2,3,4,5,6,7,8},A={1,3,5},B={3,6},求Cu(AUB).
设A={3,5,6,8} B={4,5,7,8} 求AUB,A∩B
设集合U={1,2,3,4},A={1,1},B={2,4},则Cu(AUB)=?
设集合U={1,2,3,4},A={1,2},B={2,4},则Cu(AUB)=?
设集合U=(1 ,2,3,4),A=(1,2),B=(2,4),则Cu(AUB)等于
设全集U={1,2,3,4,5},若AUB=U,A∩B中只有一个元素,且A∩CuB={1,3},求集合A,B
设全集U=R,集合A={x|0≤x<3},B={x|-1<x≤2}.求Cu(AUB),CuA CUB