更新1:
Hint: If you set x=t, how are related x and y with t?
Find parametric equation: Intersection curve of two surfaces x+2y−z=2 and 2x−y+3z=1.? (If you set x=t, how are related x and y with t?)?
回答 (1)
2015-09-02 12:41 pm
✔ 最佳答案
Let x = t , then we have2y - z = 2 - t ..... (1)
-y + 3z = 1 - 2t ..... (2)
(1) + 2*(2) , we obtain
5z = 4 - 5t
z = 4/5 - t , substitute into (2)
y = 3( 4/5 - t ) - ( 1 - 2t ) = 7/5 - t
Ans: x = t , y = 7/5 - t , z = 4/5 - t
收錄日期: 2021-05-02 14:10:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150901100806AAKSAkx