实数x.y满足3x^2+2Y^2=6x,求X^2+y^2的取值范围
若实数x,y满足3x^2+6 y^2=6x分别求x与x^2+y^2的取值范围
已知实数x,y 满足x^2+y^2=1,求(y-2)/(x+1)的取值范围
已知实数x,y满足x^2+y^2=1,求(y+2)/(x+1)的取值范围.
已知实数x y 满足x^2y^2=2x 求x^2y^2取值范围
已知实数x,y满足x^2+y^2=2x,求x^2y^2取值范围
实数x.y满足3x^2+2Y^2=6x,求X^2+y^2的取值范围
已知实数x,y 满足y=根号(3-x²).试求m=(y+1)/(x+3),b=2x+y的取值范围
若实数x,y满足2x*X+3y*y=1,S=3x*x-2y*y,则S的取值范围为
已知实数x,y满足x^2+y^2-6x-8y+24=0,则3x+4y-10的取值范围是
已知实数x,y满足x2+y2-4x+1=0,求2x+y的取值范围?
已知实数x,y满足x²+y²=1.求x²-4x+y²+2y的取值范围,求详解,
1.已知实数x、y满足x^2+y^2+4x+3=0求(y-2)/(x-1)的取值范围