若X-1=(y-2)=根号Z-3=0,则X+Y+Z=
如果,根号x-3+| y-2 |+z^2=2z-1 求 (x+z)^y
若x,y,z均为实数,且(x-1)²+|y+2|+根号(z-3)²=0则x,y,z的值分别为?
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
若{x+3y+10z=0 则 (x+y-z)/(x-y+z)
1.已知x,y,z满足2│x-y│+(根号2y-z)+z平方-z+(1/4)=0,求x,y,z值.
根号x+根号y-1+根号z-2=1/2(x+y+z),求x,y,z的值
若x-2y+4z=1,x+3y-7z=0,则y:z=?
若x,y,z>0 则根号(x^2+y^2+xy)+根号(y^2+z^2=yz)>根号(x^2+z^2+xz)
1.若/x-3/+(2x-y)²+根号y+z=0,求x,y,z的值.
若|x-8y|+(4y-1)^2+根号8z-3x=0,求根号2x+y-根号3z的值
试证明(x+y-2z)+(y+z-2x)+(z+x-2y)=3(x+y-2z)(y+z-2x)(z+x-2y)
已知x,y,z 大于0,x+y+z=2,求证 xz/y(y+z)+zy/x(x+y)+yx/z(z+x)大于等于2/3