(x-1)的2次方+2x-y的绝对值+x-3z的绝对值=0.则xyz的值是
问题描述:
(x-1)的2次方+2x-y的绝对值+x-3z的绝对值=0.则xyz的值是
答
x-1=0,2x-y=0,x-3z=0
x=1,y=2x=2,z=x/3=1/3
xyz=2/3
答
X-1=0
2X-Y=0
X-3Z=O
则X=1 Y=2 Z=1/3