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正四面体分形
Author:
GeoGebra Institute of WuXi
New Resources
【案例】圆柱体内放置一个大球六个小球
球体的体积推导（优化版）
畫出對稱圖形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
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y=a(x-h)²+k
Quiz on Polar Coordinates (1) 極坐標測驗1
GeoGebraBook(for20151202)
雙曲線1 焦點法
正角、負角|Positive angles & Negative angles
Discover Topics
Linear Programming or Linear Optimization
Expected Value
Planes
Calculus
Frequency Distribution
