(a)consider a system of lines L : kx+y=1-2k . show that for all values of k,the line L is always pass through the point(-2,1).
(b)find the equation of the line L' passing through(1,2) and perpendicular to L.
amaths
2007-12-18 5:50 am
回答 (1)
2007-12-18 6:43 am
✔ 最佳答案
As follows: 圖片參考：http://i238.photobucket.com/albums/ff245/chocolate328154/Maths049.jpg?t=1197902591
參考: My Maths Knowledge
收錄日期: 2021-05-01 13:39:19
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