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角谷猜想
Author:
Yan Dongtai（严东泰）
Topic:
Mathematics
GeoGebra
New Resources
錐體建築師
【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
三位數除以一位數（二）
柱體建築師
Discover Resources
GGB研習繪本
test04
圖B
Solar System
两角差的正弦公式证明1
Discover Topics
Dilation
Plane Figures or Shapes
Quadrilaterals
Indefinite Integral
Scalene Triangles