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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
算柱 (兩位數)
兩位數除以一位數（二）
兩組對邊相等的四邊形
第八周作业
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九點圓 (9-Point Circle)
認識正方形
異分母分數加法
計算
圆的有关概念
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Random Experiments
Circle
Natural Numbers
Logarithm
Power Functions