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Author:
Tse Sir
GeoGebra
New Resources
圓的切線方程
平行線的斜率
常见四边形是否是双心四边形
多邊形的面積
圓周公式的應用
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proof SAS
多項式函數
模擬3D物件
天干與地支
圓錐曲線截痕 to 定義式
Discover Topics
Planes
Cosine
Addition
Logarithmic Functions
Line Segment