there has a set -x+2y+z=0
How to describe the set geometrically?
thanks
數學 set問題
2014-08-24 11:57 pm
回答 (2)
2014-08-26 8:39 pm
✔ 最佳答案
(x，y，z)=(z+2y，x-z/2，x-2y)2014-08-26 12:46:43 補充：
-x+2y+z=0
-x=0-z-2y=-z-2y
x=z+2y
-x+2y+z=0
2y=0-z+x=x-z
y=(x-z)/2
-x+2y+z=0
z=0-z+x=x-2y
z=x-2y
2014-08-25 1:35 am
收錄日期: 2021-04-15 16:21:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140824000051KK00062