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有趣的梯形面積問題
Author:
Cychoy
GeoGebra
New Resources
異分母分數減法
【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
球體建築師
拼砌四邊形
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曲線下面積
task 2
Geometric Proof of Arithmetic-Geometric Mean Inequality
Copy of 劉徽的「割圓術」
Rotational Symmetry的副本
Discover Topics
Trigonometry
Inequalities
Ratios
Vectors
Cosine