M={(x,y)|(y-3)/(x-2)=a+1},N={(x,y)|(a^2-1)x+(a-1)y=15},若M交N=
若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,
已知集合m={(x,y)/x平方+2x+y=0},n={(x,y)/y=x+a},且空集是m交n
设集合A={X/X=2m+1},集合B={y/y=3n+1},n,m为整数,求A交B
已知M={(x,y)|y-3/x-2=a+1},N={(x,y)|(a^2-1)x+(a-1)y=15,若M∩N=空集,
设集合M={(x,y)|y=x^2+ax+2},集合N={(x,y)丨y=x+1}若M交N中有两个元素,求实数a的取值范
已知集合S={(x,y)|x=m,y=-3m+2,m∈N+},T={(x.y)|x=n,y=a(n²-n+1)
已知集合A={(x,y)|x-y+m=0},B={(x,y)|y=√9-x^2}.M交N元素个数
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(
二道高一集合题已知集合M={(x,y)|x+y=2},N{(x,y)|x-y=4},那么集合M∩N为A.X=3 Y=-1
高中数学奥赛题已知集合M={(x,y)|y=x^2},N={(x,y)|x^2+(y-a)^2=1},A=M∩N 若|A
⒈ 已知M={1},N={1,2},A={(X,Y)|X∈M,Y∈N},B={(X,Y)|X∈N,Y∈M}.求A∩B=?
若1+2+3+...+n=a,求代数式(x^ny)(x^n-1y^2)(x^n-2y^3)...(x^2y^n-1)(x