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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
【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
兩位數加法
拼砌四邊形
画直线等分三角形的面积
Discover Resources
regular tetrahedron in a cube
三角柱
congruent (ASA)
等截距和直線包絡拋物線
移動愛心
Discover Topics
Set Theory
Exponent
Line Segment
Area
Piecewise Functions