【1-(x/y)】/100=z求x

已知x/(y+z)+y/(z+x)+z/(x+y)=1求(x*x)/(y+z)+(y*y)/(x+z)+(z*z)/(x+y)=?已知x/(y+z)+y/(z+x)+z/(x+y)=1求(x*x)/(y+z)+(y*y)/(x+z)+(z*

已知实数xyz满足x/y+z+y/z+x+z/x+y=1求x^2/y+z+y^2/z+x+z^2/x+y的值纠正下！：已知实数xyz满足（x/y+z）+（y/z+x）+（z/x+y）=1求（x^2/y+z）+（y^2/z+x）+（z^2/x

100x+10y+1z=18x+18y+18x求：x、y、z各是几.100x+10y+1z=18x+18y+18x求：x、y、z各是几.100x+10y+1z=18x+18y+18x求：x、y、z各是几.3个变量俩方程组怎么解

x+y+z=12x-y+z=2x-z+y+a=90x+y+a+z=100,求xyzax+y+z=12x-y+z=2x-z+y+a=90x+y+a+z=100,求xyzax+y+z=12x-y+z=2x-z+y+a=90x+y+a+z=100

X/Y+Z=Y/X+Z+1=Z/X+Y-1=X+Y+Z,求x+y+z等于多少X/Y+Z=Y/X+Z+1=Z/X+Y-1=X+Y+Z,求x+y+z等于多少X/Y+Z=Y/X+Z+1=Z/X+Y-1=X+Y+Z,求x+y+z等于多少利用a/b=

(y+z)/x=(z+x)/y=(x+y)/z求x+y-z/x+y+z的值(y+z)/x=(z+x)/y=(x+y)/z求x+y-z/x+y+z的值(y+z)/x=(z+x)/y=(x+y)/z求x+y-z/x+y+z的值令(y+z)/x=

若|x+3|+|y-2|+|2×z+1|=0求(x×z-y×z)(y-x+z)的值若|x+3|+|y-2|+|2×z+1|=0求(x×z-y×z)(y-x+z)的值若|x+3|+|y-2|+|2×z+1|=0求(x×z-y×z)(y-x+z

已知非零实数x,y,z满足x+y+z=0,求x(1/y+1/z)+y(1/x+1/z)+z(1/x+1/y)的值啊……请问有谁会这道题吗……纠结了……还有另一道题：已知x的二次方减y的二次方＝xy，且xy不等于0，求x的二次方y的负二次方已

已知非零实数x,y,z满足x+y+z=0,求x(1/y+1/z)+y(1/x+1/z)+z(1/x+1/y)的值.谢.已知非零实数x,y,z满足x+y+z=0,求x(1/y+1/z)+y(1/x+1/z)+z(1/x+1/y)的值.谢.已知

已知实数x,y,z满足x/(y+z)+y/(z+x)+z/(x+y)=1,求x2/(y+z)+y2/(z+x)+z2/(x+y)的值已知实数x,y,z满足x/(y+z)+y/(z+x)+z/(x+y)=1,求x2/(y+z)+y2/(z+x

已知x,y,z满足x/(y+z)+y/(z+x)+z/(x+y)=1,求代数式x2/(y+z)+y2/(x+z)+z2/(x+y)的值、2是平方已知x,y,z满足x/(y+z)+y/(z+x)+z/(x+y)=1,求代数式x2/(y+z)+

6x+5y+3z=100x+y+z=30求xy6x+5y+3z=100x+y+z=30求xy6x+5y+3z=100x+y+z=30求xy是不是还少了一个啊?应该是三元一次方程组吧先给你一个答案吧,分别是2,2,26仅用2个三元一次方程是无

XYZ(X+Y+Z)=1求（x+y)(x+z)的最小值（X>0,Y>0,Z>O)XYZ(X+Y+Z)=1求（x+y)(x+z)的最小值（X>0,Y>0,Z>O)XYZ(X+Y+Z)=1求（x+y)(x+z)的最小值（X>0,Y>0,Z>O)

如果,根号x-3+|y-2|+z^2=2z-1求（x+z)^y如果,根号x-3+|y-2|+z^2=2z-1求（x+z)^y如果,根号x-3+|y-2|+z^2=2z-1求（x+z)^y根号x-3+|y-2|+z^2=2z-1根号x-3+|

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xyz满足x/(x+1)=y

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xyz满足x/(x+1)=y

数学不等式题：x.y.z属于R+,xyz(x+y+z)=1求（x+y)(y+z)最小值数学不等式题：x.y.z属于R+,xyz(x+y+z)=1求（x+y)(y+z)最小值数学不等式题：x.y.z属于R+,xyz(x+y+z)=1求（x+y

100x+10y+z=27(x+y+z)x+z=y+1100z+10y+x-100x-10y-z=99解方程组100x+10y+z=27(x+y+z)x+z=y+1100z+10y+x-100x-10y-z=99.急.100x+10y+z=

2|X-Y|+√2Y+Z+Z²-Z+1/4=0求X+Y+Z的值2|X-Y|+√2Y+Z+Z²-Z+1/4=0求X+Y+Z的值2|X-Y|+√2Y+Z+Z²-Z+1/4=0求X+Y+Z的值y=负八分之根号二,x＝负八分

已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z已知(x+y)(x+z)=x,(y+z)(y