更新1:
我書答案係x²+y²-10x-10y+25=0
a-maths!!!!!!
回答 (1)
2007-09-15 3:08 am
✔ 最佳答案
As follows~~~圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/circle8.jpg?t=1189768107
參考: Myself~~~
收錄日期: 2021-04-23 20:32:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070914000051KK02405