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圓心在同一直線上且相切的圓(半徑可改變)
Author:
lee chao ming
GeoGebra
New Resources
兩位數除以一位數（二）
三位數除以一位數（一）
【案例】2013年安徽高考15题
兩組對邊相等的四邊形
柱體建築師
Discover Resources
一次函數平移(進階)
Apollonius Problem 4 LLP Homo 12
曲柄滑塊
數學電腦繪圖與解題
The motion of a charged particle in an electric field带电粒子在加速电场和偏转电场中的运动
Discover Topics
Median Line
Tangent Function
Optimization Problems
Cosine
Sphere