若**M={(x,y)|x+y=0},N={(x,y)|x^+y^=0,x,y∈R},则有( )
若**M={(x,y)|x+y=0},N={(x,y)|x^+y^=0,x,y∈R},则有( )
若全集I={(x,y)|x,y∈R},集合M={(x,y)|(y-3)/(x-2)},N{(x,y)|y=x=1},则(
设集合M={(x,y)|x^2+y^2=1.x∈R,y∈R},N={(x,y)|x-y=0,x∈R,y∈R},则集合M∩
设集合M={(x,y)|x+y=1,x∈R,y∈R},N={(x,y)|x²-y=0,x,y∈R} 则集合M∩
已知集合M={x|x-2>0,x∈R},N={y|y=x2+1,x∈R},则M∪N等于( )
设集合M={(x,y)/x2+y2=1,x∈R,y∈R},N={(x,y)/x2-y=0,x∈R,Y∈R},则集合M和N
设集合M={(x,y)|x2+y2=1,x∈R,y∈R},N={(x,y)|x2-y=0,x∈R,y∈R},则集合M∩N
设集合M={(x,y)x方=y方=1,x,y属于R}N={(x,y)x方-y、0,xy属于R}则集合M交N中元素的个数
已知集合M= { y | y=x^2, x∈R}, N={ y | y=2-|x|, x∈R} 则M∩N=( )
设集合M={y|y=x²,x∈R},N={y|y=2-|x|,x∈R},则M∩N?
设集合M{Y|Y=X,X∈R},N={Y|Y=X的平方,X∈R}则集合M∩B等于
已知集合M={x/x/(x-1)^3≥0},N={y/y=3x^2+1,x∈R}则M交N等于