若实数X Y满足3X-2Y-5=0{X大于等于1小于等于3｝求Y/X的最大值和最小值!

实数x,y满足2x+5y>=0,2x-3y>=-6,2x+y 若实数x,y满足约束条件x-y-2=0,2y-3 若实数x,y满足x的平方+y的平方-4x-2y+5=0,则（x+y）/2x-3= 若实数x,y满足不等式组x>=0 ,y>=0,x+2y 若实数x,y满足x^2-xy-y^2 =0,则x/y=? 若实数x,y满足(x-y-5)的平方+/2x+3y+20/=0,求3x+2y+1的值 若实数x、y满足x平方+y平方-4x-2y+5=0,求根号8y-2x分之（根号x）+y 若实数X,Y满足x²+y²-4x-2y+5=0求√x+y/√8y-2x 若实数x、y满足x*x+y*y-2x+4y+5=0,求x-y的值 设实数X,Y满足2X+Y-2>=0,X-2Y+4>=0,3X-Y 若实数x,y满足x²+y²-2x+4y=0,求x-y的最大值 若实数x y满足（x+y)²+（x+y)-2=0则x+y值为 已知实数x,y满足2x+5y>=10;2x-3y>-6;2x+y 若实数x,y满足x-y+1》=0,x+y>=0,x 若实数x,y满足x-y+1>=0,x+y>=0,x 最小值若实数 满足不等式组 2x-y>=0,x+y-3>=0,3x+y-8 设实数x,y满足 x>=0 x-2y>=0 x-y-2 当实数x,y,满足约束条件{x>0 y>=x 2x+y+k