问:(1)已知实数x,y满足不等式x^2-2x≥y^2-2y,若1≤x≤4,求y/x的取值范围;
问:(1)已知实数x,y满足不等式x^2-2x≥y^2-2y,若1≤x≤4,求y/x的取值范围;
(1)已知实数x,y满足不等式x²-2x≥y²-2y,若1≤x≤4,求y/x的取值范围;
已知实数x,y满足(x-y+6)(x+y-6)≥0,1≤x≤4,第(1)问,求x的平方+y的平方-2的取值范围,第(2)
已知实数x,y满足x^2+(y-1)^2=1,求使不等式x+y+m>=0恒成立实数m的取值范围
已知实数x,y满足(x-y+6)(x+y-6)≥0,1≤x≤4,(1)求x^2+y^(2)-2的取值范围,(2)求y/(
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.
设实数x,y满足{x-y-2≤0 x+2y-5≥0 y-2≤0.(1)求z=x+y的取值范围;(2)求u=(x+y)/x
1.若实数X,Y满足不等式组 y≥0 x-y≤4 2x-y-2≥0,则W=(y-1)/(x+1)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
实数X.Y满足X*X+Y*Y-2X-2Y+1=0,则(Y-4)/(X-2)的取值范围是?