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图案A
Author:
吉顺国
GeoGebra
New Resources
三位數除以一位數（二）
兩組對邊相等的四邊形
第八周作业
四邊形的特性
球体的体积推导
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動態角=30
測試: f(x)=sin(ax)+b 練習
Measures of Central Tendency 集中趨勢的量度
指數的對稱
Copy of 劉徽的「割圓術」
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Square
Prism
Pythagoras or Pythagorean Theorem
Centroid or Barycenter
Upper and Lower Sum or Riemann Sum