已知实数x,y满足x+2y=6,当1≤x≤3时,y-1/x-2的取值范围为多少

已知实数x,y满足x+2y=6,当1≤x≤3时,y-1/x-2的取值范围为多少 已知实数x、y满足x+2y=6,当1≤x≤3时,(y-1)/(x-2)的取值范围是 已知实数x、y满足x+2y=6,当1≤x≤3时,(y-1)/(x-2)的取值范围是 已知实数x,y满足2x+y=8当2≤x≤3时求y+1/x+2的最大值和最小值 已知实数x,y满足y=-2x+8,当2 已知实数x、y满足2x+y=8,当2 已知实数x,y满足y=|x-1|,则x+2y的最大值是 已知实数x,y满足y=|x-1|若x+2y 已知实数x,y满足x-ay-1>=0,2x+y>=0,x 当实数x,y,满足约束条件{x>0 y>=x 2x+y+k 已知实数x,y满足x-y 已知实数X,Y满足{|x+y| 已知实数x,y满足2x+5y>=10;2x-3y>-6;2x+y 已知实数x,y满足(x+y)^2=1,(x-y)^2=25,求x,y的值 已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x. 已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y 已知实数x,y满足2x+y=8,当2≤x≤3时,求x/y的最值 已知实数x,y满足2x+y=8,当2≤x≤3时,求x/y的最值