(2010•宿州三模)已知点P(x,y)的坐标x,y满足3x−y≤0x−3y+2≥0y≥0,则x2+y2-4x的取值范围
(2010•宿州三模)已知点P(x,y)的坐标x,y满足3x−y≤0x−3y+2≥0y≥0,则x2+y2-4x的取值范围
已知动点P(x,y)满足,x2+y2−4x+6y+13+x2+y2+6x+4y+13=26,则y−1x−3取值范围(
已知平面内点P(x,y)满足不等式(x+2y-1)(x-y+3)≥0,求x2+y2的最小值.
(2012•温州二模)已知实数满足y−x+2≥0x2+y2≤4,则y-3x的取值范围是( )
已知实数x,y满足x2+y2+4x+3=0,求(y-2)/(x-1)的取值范围.
已知实数x,y满足x2+y2-4x+1=0,求2x+y的取值范围?
实数x,y满足x2+y2=4(y≥0),试求m=(根号3)x+y的取值范围
已知点p(x,y)是圆x2+y2-2y-3=0上任意一点则X2+(y+2)2的取值范围
点P(x,y)在函数y=|x|的图象上,且x、y满足x-2y+2≥0,则点P到坐标原点距离的取值范围是( )
已知实数x,y满足:x2+3y2-3=0,求x+y的取值范围.
已知实数x,y满足x>0,y>0,且2x-y≤0,x-3y+5≥0,则z=(1/4)^x(1/2)^y的取值范围
设x、y满足约束条件{x≥0 y≥x 4x+3y≤12}则2y+3/x+1的取值范围是?