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方格纸上画平行线和垂线
Author:
郭勇
GeoGebra
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第八周作业2
折扣
百分數及其應用
活动三:应用性质
斐波那契螺旋弧线(表格法-可动态调节)
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千年曆2
ghseh 二次函數描點法頂點法-6
拋物線定義
正弦定理的副本
拋物線3--平行四邊形法
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Matrices
Incircle or Inscribed Circle
Mode
Diagrams
Surface