A={(x,y)|2x-y=1},B={(x,y)|5x+y=6},求A∩B
A={y|y=-4x+6},B={x|y=5x-3},求A∩B.
已知集合A={(x,y)|2x-y=0},B={(x,y)|3x+y=0},C={(x,y)|2x-y=3}求A∩B,A
1.、已知线段x,y,如果(x+y):(x-y)=a:b,求x、y
1、A={(x,y)|y=x平方-4x=5},B={(x,y)|y=2x平方-7},求A交B
(x-A)*(B-y)=x^2-9xy+8y^2,求A,B
已知集合A={(x,y|2x-y=0)},B={(x,y)|3x+y=0},C={(x,y)|2x-y=3},求A∩B,
已知集合A={(x,y)/2x—y=0},B={(x,y)/3x+y=0 }.C={(x,Y)/2x-y=3},求A∩B
3a(x+y)-2b(x+y)=(x+y)(?)
若集合A={(x,y)/x²+y²=1},B={(x,y)/y²=2(x+)},则A∩B=
1.已知集合A={(x,y)|y=2x+1},B={(x,y)|y=x+3},a∈A,b∈B,求a
设集合A={(x,y)|y≥|x-2|,x>=0},B ={(x,y)|y
设U={(X,Y)}|X,Y属于R},A={(X,Y)Y-3/X-2=1},B=(X,Y)|Y=X+1},求CuA与B的