已知全集i={1,2,3,4,5,6,7,8,},其中a={1,2,3,4},b={3,5,6,7}求AUB求A⌒(C1
已知全集i={1,2,3,4,5,6,7,8,},其中a={1,2,3,4},b={3,5,6,7}求AUB求A⌒(C1
设全集U={1,2,3,4.,5,6,7,8}.集合A={2,4,6},集合B={3,4,5}.求A∩B,AUB,CuA
已知集合A={1,2,3,4,5},集合B={4,5,6,7,8,9}求A∩B和AUB.这题不会写,
已知全集U=AUB{x属于N|0≤x≤10},A∩(C∪B)={1,3,5,7},试求集合B
已知全集u=AuB={x属于N丨0≤x≤10},A∩(CuB)={1,3,5,7},试求集合B
已知全集U=AUB={x∈N|0≤x≤10} A∩(∁uB)={1,3,5,7}试求集合B
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={小于8且不小于6的整数 },A={2,3,4},B={-3,6,7},求AnB=,AUB=?CuAnB=?
设A={3,5,6,8},B={4,5,7,8},求AnB,AUB
已知全集U等于R,集合A={x|2x²-x-6≥0},B={x|﹙1-x/x-3﹚≥0﹜求AUB:求﹙A交B﹚
已知全集U=R,A={x||x-1|大于等于1},B={x|(x-2)(x-3)大于等于0},求AUB (CuA)交(C
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