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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
錐體建築師
GeoGebra笔记功能体验课件
第八周作业
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
Discover Resources
圍棋名人賽
平行四邊形
三角測量01
畫圓
戴德林球
Discover Topics
Arithmetic
Conditional Probability
Bar Chart or Bar Graph
Diagrams
Piecewise Functions