已知全集U={1,2,3,4,5,6,7,8,},A={2,4,}B={1,2,5},则补集A=多少
已知全集U={1,2,3,4,5,6,7,8,9},A、B都是全集U的子集,若A∩B={1,2,3} 则称集对(A,B)
一道集合题.已知全集U={1,2,3,4,5,6,7,8,9},A,B都是全集U的子集,且B∩CuA={1,9},A∩B
已知全集u ={1,2,3,4,5,6,7,8},集合A、B都是U的子集,当A交(CuB)={1,2,3},
已知全集U={1,2,3,4,5,6,7,8,9},A并B在全集U中的补集={1,3},A交B的补集={2,4}.求集合
已知全集u={1,2,3,4,5,6,7,},A={2,4,5},B={1,3,5,7}求(CuA)U(Cu B) ,
已知全集U={1,2,3,4,5},集合A={1,3},B={345},则集合补集(A∩B)等于多少
已知全集U={1,2,3,4,5,6,7,8},A={2,4},B={1,2,5}则A在U中的补集=(),B在U中补集=
已知全集U={1,2,3,4,5,6,7,8,9},A、B是U的子集,同时满足A∩B={2},(CuA)∩B={1,9}
已知全集U={1,2,3,4,5,6,7,8,9},A包含于U,B包含于U,且(CuA)∩B={1,9},(CuA)∩(
已知全集u={1,2,3,4,5,6,7,8,},A={2,5,8},B={1,3,5,7}那么(CuA)N等于?
已知全集U={1,2,3,4,5,6,7,8},A={3,4,5},B={4,7,8}.求CuA,CuB,Cu∩CuB,
已知全集U={1,2,3,4,5,6,7,8},A={3,4,5},B={4,7,8}.