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Proof of Pythagoras Theorem
Author:
yaqiang liu_1
GeoGebra
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【案例】2018年全国1卷理科12题
異分母分數減法
三位數除以一位數（一）
小数 的副本
近似值：有效數字
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樞紐內容
托勒密定理的應用
ie 7
規律物件
正十二面體裁邊 (Chamfered Dodecahedron)
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Geometric Transformations
Integers
Exponential Functions
Upper and Lower Sum or Riemann Sum
Plane Figures or Shapes