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Copy of Triangular Number
Author:
Ronan Downes
,
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
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【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）
三位數除以一位數（二）
【案例】2013年安徽高考15题
兩位數除以一位數（一）
Discover Resources
test file
hnrfgyhnjyngfnfg
優良作品4
Rolling Circle
示例2
Discover Topics
Quadratic Functions
Area
Linear Equations
Vectors
Tangent Function