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外積分配律
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
參考：
Cross Product
- Wikiversity
New Resources
四邉形 (四年級) 教師版
錐體建築師
兩位數除以一位數（二）
畫出對稱圖形
兩組對邊相等的四邊形
Discover Resources
五邊形與三角形等積
四邊形的「等角分點」的副本
angle at the same segment
F2_Ch11.1_三角學(對鄰斜)
Quiz on Discriminant 判別式：測驗
Discover Topics
Variance
Power Functions
Sine
Fractal Geometry
Pie Chart or Circle Chart