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Three-phase electric power
Author:
曾彥宏
Three-phase electric power
GeoGebra
New Resources
多邊形的面積
平行線的斜率
直線的斜率
三角函数 的副本
撒针估算面积实验
Discover Resources
同心圓和線段
[S2] a revised version of Jane’s GeoGebra file (modified by the author)
GGB5
sin 的泰勒展開式
Copy of 閱讀鐘面及數字鐘（時和分）
Discover Topics
Functions
Correlation
Triangles
Curve Sketching
Straight Lines