已知(x-1)^2+3(2y+1)^2+|y-z-5|=0,则x= y= z=
4个回答
解
(x-1)^2+3(2y+1)^2+|y-z-5|=0
∴
x-1=0
2y+1=0
y-z-5=0
∴
x=1
y=-1/2
z=-11/2
相关问题
已知x+2y-3z=0,5x-6y+7z=1;则x:y:z=?
填空题1.已知x+4y-3z=0,4x-5y+2z=0,则x:y:z=_______.2.已知x=1-t,y=2-3t,
已知x+2y-4z=0,3x-y-z=0,则3x+2y+z/x+2y+z=
已知{2x-5y=0 则x+y+z/2y= x-6y+3z=0
(1)已知方程组4x-5y+2z=0和x+4y=3z,则x:y:z=____________________?
已知x+3y+5z=0,2x+3y+z=0,且x,y,z都不是零,则(2y−x)(2y+x)z2=______.
已知实数x,y,Z满足√x+√(y-1)+√(Z-2)=0.5(x+y+Z),则xyZ=?
已知x:2=y:3=z:0.5,则[x+3y−z/2x−y+z]的值是( )
已知x:y=2:3,y:z=0.2:0.3,则x:y:z=?
已知x+y-z=0,2x-y+2z=0 求(3x-2y+5z)/(5x-3y+2z)的值