(2012•蓝山县模拟)设全集U={1,2,3,4,5,6,7},集合A={1,3,5},B={2,5,7},则(∁UA
已知全集 U={1,2,3,4,5},A={1,5},B⊆∁UA,则集合B 的个数是( )
设集合A、B都是全集U={1,2,3,4}的子集,已知(∁UA)∩(∁UB)={2},(∁UA)∩B={1},则A=__
设全集U={1,2,3,4,5},A∩∁UB={1,2},则集合∁UA∩B的所有子集个数最多为( )
已知集合A、B是全集U={1,2,3,4,5,6,7,8,9}的子集,且A∩B={2},(∁UA)∩(∁UB)={1,9
设全集U={0,1,2,3,4,5,6},A={1,3,4},B={0,3,4,6},求A∪B,补集uA,补集u(A∪B
设全集U={1,2,3,4,5,6,7,8},集合A={2,4,6},集合B{3,4,5}
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,A∪B,A在U中
设全集是数集U={2,3,a2+2a-3},已知A={2,b},∁UA={5},求实数a,b的值.
设U={1,2,3,4,5},A,B为U的子集,若A∩B={2},(∁UA)∩B={4},(∁UA)∩(∁UB)={1,
设全集U=(负无穷,2] 若集合CuA=[-5,0] B=(-7,-5]U(-3,1) 求A B 的补集
设集合A={4,5,7,9},B={3,4,7,8,9},全集U=A∪B,则集合∁U(A∩B)的真子集共有( )
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