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S2 Chapter11.2 選擇適當的三角比
Author:
Li Woon Chung
Topic:
Trigonometry
GeoGebra
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異分母分數減法
球體建築師
兩位數除以一位數（二）
兩位數加法
畫出對稱圖形
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蝴蝶定理證明1：Steven構造恒等式
反射對稱
ex 6
单晨正方形在正六边形内部滚动的课件
拋物線的光線反射 獻給聰哥
Discover Topics
Rhombus
Confidence Interval
Scalene Triangles
Vectors
Prism