设集合A={y y=x²-2x+2,x∈R},U=R,B={x -1≤x≤1}
设集合A={y y=x²-2x+2,x∈R},U=R,B={x -1≤x≤1}
设集合A={x//x-2/≤2,x∈R},B={y/y=-x^2,-1
设集合A=y/y=x²-2x+2 x∈R B=x/y=根号下1-x/1+x ∈R 全集U=R,求A的补集与B的
设全集U={(x,y)│x∈R,y∈R},集合A=={(x,y)│y-3/x-2=1},B={(x,y)|y≠x+1},
设全集U={(x,y)x∈R,y∈R},集合A={(x,y)|x-2分之y-3=1},B={(x,y)|y≠x+1},求
(1/2)[紧急求助,] 设全集U=R,集合A={x|y=log1/2[(x+3)(x-2)]},B={x|2的(x-1
设集合A={x|x^2+mx+1=0,x∈R},B=y|y
设集合A={y|y=x²-2x,x∈R},集合B={y|y=-x²+1,x∈R},则A∩B=
设集合A={(x,y)|2x+y=1,x、y∈R},集合B={(x,y)|a2x+2y=a,x,y∈R},若A∩B=∅,
设全集U=R,集合 A={x|x−2x+1≤0},B={y|y=cosx,x∈A},A∩B=( )
设全集U={(x,y)|x,y属于R},集合M={(x,y)|(y+2)除以(x-2)=1},N={(x,y)|y不等于
设全集U={(x,y)|x,y属于R},集合M={(x,y)|(y-3)除以(x-2)=1},N={(x,y)|y不等于