设实数x,y,z满足x+y+z=4(x−5+y−4+z−3
若实数x、y、z满足2|x−y|+2y+z+z
已知x、y、z满足|4x-4y+1|+152y+z+(z−12)
设x.y.z满足3x=4y=6z(x.y.z都是指数)求证
设x.y.z满足3x=4y=6z(x.y.z都是指数)比较3x.4y.6z的大小
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
设z=2x+y,变量x,y满足条件x−4y≤−33x+5y≤25x≥1
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
已知三个实数x,y,z满足(z-x)平方-4(x-y)(y-z)=0.求证x,y,z成等差数列
x,y,z属于正实数,且3x+4y+5z=1 求1/(x+y)+1/(y+z)+1/(x+z)的最小值
已知x,y,z满足3x+7y+z=5 4x+10y+z=3 求x+y+z的值
已知x、y、z满足{3x+7y+z=5 ,求x+y+z的值 {4x+10y+z=3
设X,Y,Z为正实数,求(1+2X)*(3Y+4X)*(4y+3z)*(2z+1)/(x*y*z)的最小值