设2011x=2012y=2013z,xyz>0,且√2011x+2012y+2013z=√2011十√2012+√20
设2011x=2012y=2013z,xyz>0,且√2011x+2012y+2013z=√2011十√2012+√20
已知xyz适合关系式√3x+y-z-2+√2x+y-z=√x+y-2011+2011-x-y,试求xyz的值
已知x+y-z/z=x-y+z/y=-x+y+z/x,且xyz不等于0,求分式[(x+y)(x+z)(y+z)]/xyz
若xyz不等于0,且满足(y+z)/x=(x+z)/y=(x+y)/z,求(y+z)(x+z)(x+y)/xyz的值
若xyz不等于0,且(y+z)/x=(z+x)/y=(x+y)/z,求(y+z)(z+x)(x+y)/xyz的值?
已知:(x+y-z)/z=(x-y+z)/y+(y+z-x)/x,且xyz≠0,求代数式[(x+y)(y+z)(x+z)
已知:(x+y)/z=(x+z)/y=(z+y)/x,且xyz不等于0,则分式(x+y)(x+z)(z+x)/xyz的值
若xy-z不等于0,且(y+x)/x=(z+x)/y=(y+x)/z,求[(y+z)(z+x)(x+y)]/xyz的值?
已知实数xyz满足|x-2y|+2√(2y+z)+z-2z+1=0,求x+y+z的值
设xyz不 等于0,且2x-y+z=0,x+2y-5z=0,试求代数式(x-y)/(y+z) 的值
设X+Y+Z=0求X^3+X^2Z-XYZ+Y^2Z+Y^3的值
设x,y,z为正实数,且x+y+z>=xyz,求x^2+y^2+z^2/xyz的最小值