更新1:
正確答案是3x+y-10=0,我計不到
Maths problem: how to do, thanks?
回答 (1)
2020-05-09 7:19 pm
✔ 最佳答案
slope of RS = (1- -1)/(3- -3) = 2/6 = 1/3eqt. of L: y-1 = (1/3)(x-3)
3(y-1) = x-3
3y-3 = x-3
x-3y = 0
收錄日期: 2021-04-24 07:52:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200509102122AAc2NNO