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圆锥曲线第二定义
Author:
冯伟冀
Topic:
Conic Sections
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（二）
拼砌四邊形
找出對稱軸
兩組對邊相等和有直角的四邊形
Discover Resources
math 2-2
General Form of Quadratic Functions(2) 二次函數的圖像：一般式(2)
Curtate Cycloid
美麗的花
微積分基本定理的副本
Discover Topics
Complex Numbers
Integral Calculus
Stochastic Process or Random Process
Reflection
Polygons