设三个整数xyz成等差数列,x+y,y+z,z+x成等比数列,x+y+z小于50不小于46,求x,y,z,
已知整数x,y,z成等差数列,x+y,y+z,z+x成等比数列,且x+y+z∈(40,45),求此三个数
三个整数x,y,z成等差数列,其和介于40与44之间,且x+y,y+z,z+x成等比数列,求此三数
1.设X ,Y,Z 成等差数列,代数式(X-Z)*(X-Z)+ 4(X-Y)(Z-Y)=
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
设x,y,z是实数,3x,4y,5z成等比数列,且x分之1,y分之1,z分之1成等差数列,求z分之x加x分之z的值
若z分之x+y+z=y分之x-y+z=x分之-x+y+z,求xyz分之(x+y)(y+z)(z+x)
(x+y-z)/z=(y+z-x)/x=(z+x-y)/y 求(x+y)(y+z)(z+x)/xyz
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)
x,y,z都是不小于1的实数,xyz=10,且x^(lgx)×y^(lgy)×z^(lgz)=10,求x,y,z的值.
x+y+z=1 求xyz/(x+y)(y+z)(z+x)的最大值
设X+Y+Z=0求X^3+X^2Z-XYZ+Y^2Z+Y^3的值
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