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gmj106a12 旋轉矩陣與面積
Author:
均一
GeoGebra
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活动三:应用性质
撒针估算面积实验
椭圆内切圆链
比較五件物件的重量
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橢圓軌跡
空間座標系
F2_Ch11.2_三角學(邊長與角的關係)
ghk105b19 切線長度
抛物线定义
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Statistics
Integers
Curve Sketching
Constructions
Right Triangles