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橢圓內的光線反射 獻給聰哥
Author:
宋政蒲
Topic:
Ellipse
,
Reflection
橢圓內的光線反射
GeoGebra
New Resources
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
GeoGebra笔记功能体验课件
異分母分數減法
兩組對邊相等和有直角的四邊形
Discover Resources
有趣的切圓
同心圓內的直線2
tetrahedron rotational symmetric
Copy of 簡易的迷宮
Copy of 閱讀鐘面及數字鐘（時和分）
Discover Topics
Sequences and Series
Scatter Plot
Trapezium
Binomial Distribution
Inequalities