已知实数x,y,z满足x+y+z=2根号x-1+2根号y-1+2根号z-1求X+2Y+3Z

已知实数x,y,z满足x+y+z=2根号x-1+2根号y-1+2根号z-1求X+2Y+3Z 已知实数x,y,z,满足x²+4y²+根号-z²=2x+4y-2,求x+2y-z的平方 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值 已知实数x,y,z满足x^2+4y^2+根号-z^2,求x+2y-z的平方根.rt已知实数x,y,z满足x^2+4y^2+根号-z^2=2x+4y-2z,求x+2y-z的平方根。 若实数XYZ满足2|x-y|+√2y+z+z方-z+1//4=0 求X+Y+Z 2y+z在根号里 已知实数x,y,z,满足那么x+y=6,z^2=xy-9,求(x+y)^z 已知实数XYZ满足X+Y+Z=4(根号X-5+根号Y-4+根号Z-3),求X,Y,Z的值 已知实数XYZ满足X+Y+Z=4(根号X-5+根号Y-4+根号Z-3),求X,Y,Z的值 已知实数X,Y,Z满足：X+Y+Z=2根号下X-1+2根号下Y-1+2根号下Z-1,求X+2Y+3Z 实数x,y,z满足x=y+根号2,2xy+2*根号2*z*z+1=0,则x+y+z等于多少这是道奥赛题, 已知实数x,y,z满足：|4x-4y+1| + 1/3根号2y+z +z的平方- z + 1/4 = 0,求(y＋z)乘x平方 的值．：(1)(2)(3)(4) 已知实数x,y,z满足关系式2x-3y-z=0,x-2y+z=0,求x比y比z的值 已知x,y,z均为实数,且满足:x+2y-z=6,x-y+2z=3.求x+y+z的最小值 已知实数xyz满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3求x+y+z的值 已知实数 x y z 满足x+y-z=0 ,3x-y+2z=0 则x :y :z 已知三个实数x,y,z满足条件(z-x)^2-4(x-y)(y-z)=0,求证:x,y,z成等差数列 已知实数x,y,z满足2｜x-y｜+√2y+z+z2-z+1/4=0求x+y+z的值