设集合A{1,2,3,4},B{3,4,5},则A∩B= ,A∪B=
设集合A{1,2,3,4},B{3,4,5},则A∩B= ,A∪B=
设集合A={1,2,3,4},集合B={-2,2}则A∩B=
设集合A={4,log2(a+3)},集合B={a,b},若A交B={2},则A并B等于
设集合A={5,log2(a+3)},B={a,b}.若A∩B={1},则A∪B=______.
设集合A={5,log2(a2-3a+6)},集合B={1,a,b},若A∩B={2},则集合A∪B的真子集的个数是(
填空 设集合A={1,2},集合B={2,3,5},则A ∩B=
设集合A={5,log2(a+3)},集合B={a,b},若A∩B={2},则A∪B等于多少?log...
设集合A={|a+1|,3,5},集合B={2a+1,a平方+2a a平方+2a-1},若A∩B={2,3},求A∪B
设集合A={|a+1|,3,5},集合B={2a+1,a平方+2a,a平方+2a-1},若A∩B={2,3},求A∪B
设集合A={-1,0,1},集合B={0,1,2,3},定义A*B={(x,y)|x∈A∩B,y∈A∪B},则A*B中元
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
设集合A={-1,1,3},B={a+2,a2+4},A∩B={3},则实数a=______.