Forgot password
 Register account
View 2290|Reply 4

[几何] Apollonius圆的推广

[Copy link]

461

Threads

957

Posts

4

Reputation

Show all posts

青青子衿 posted 2014-12-26 20:56 |Read mode
搜狗截图20141226203938.png 搜狗截图20141226203944.PNG
已知点$A$,圆$O_1$,线段$AO_1$上一点$C$,是否存在圆$O_2$,使得圆$O_2$上一动点$P$到$A$点的距离与$P$到圆$O_1$的切线长成比例。

0

Threads

406

Posts

6

Reputation

Show all posts

爪机专用 posted 2014-12-26 21:09
C点有什么用?

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2014-12-26 21:40
其实更一般的情形我在旧版论坛也写过了,方法也很常规,见:
kkkkuingggg.haotui.com/thread-71-1-5.html

461

Threads

957

Posts

4

Reputation

Show all posts

original poster 青青子衿 posted 2014-12-27 09:02
回复 2# 爪机专用
因为,我在构造该图形时,用的是$|AP|/|BP|=|AC|/|CO_1|$.

461

Threads

957

Posts

4

Reputation

Show all posts

original poster 青青子衿 posted 2014-12-27 10:03
回复 3# kuing
wewwweoored.gif

Quick Reply

Advanced Mode
B Color Image Link Quote Code Smilies
You have to log in before you can reply Login | Register account

$\LaTeX$ formula tutorial

Mobile version

2025-7-15 14:38 GMT+8

Powered by Discuz!

Processed in 0.013998 seconds, 25 queries