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例2 22.5 67.5
Author:
谢鹏
GeoGebra
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圓的切線方程
常见四边形是否是双心四边形
平行線的斜率
斜率的值
正方形雪花图案
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指數函數與二次函數101.11.26
Quiz on Simplifying Ratios 比的化簡：測驗
[問題] OP 最大投影長
生活中的平面圖形問題1
Bayes' Thm
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General Quadrilateral
Solids or 3D Shapes
Trigonometric Functions
Circle
Interest Calculation