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餘弦定理
Author:
羅驥韡 (Pegasus Roe)
Topic:
Cosine
GeoGebra
New Resources
斜率的值
兩位數除以一位數（一）
空间中两直线的位置关系
讀磅
球体的体积推导
Discover Resources
傅立葉級數 (2)
君子球
o'clcok
日光平行光
圆的面积展开的副本
Discover Topics
Vectors 2D (Two-Dimensional)
Trigonometry
Variance
Reflection
Fractal Geometry