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GGB 向量的線性組合
Author:
黃義凱
GeoGebra
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圓周公式的應用
百分數及其應用
科氏力 (Coriolis Force)
平行線的斜率
探究三角形的全等條件
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正切函數值的變化
circuit
黎曼和
閱讀鐘面及數字鐘（時和分）的副本
K1+k2
Discover Topics
Vectors 2D (Two-Dimensional)
Calculus
Special Points
Reflection
Circumcircle or Circumscribed Circle