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Tangent and normal
Author:
kidmancmw
GeoGebra
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【案例】2018年全国1卷理科12题
拼砌四邊形
球體建築師
四邊形的特性
找出對稱軸
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EnergyMath 2-3 n次方根
教學－直線方程性質
随机模拟实验（撒豆子估算π）的副本
等比数列前n项和公式
统计图表制作
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Prism
Quadratic Equations
Histogram
Cosine
Circle