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重評第9題
Author:
周錦鋒
GeoGebra
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异形操场
常见四边形是否是双心四边形
平行線的判定
圓的基本性質
百分數及其應用
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S5 2D Trigonometry
Circle
兩種定義 clamp() 函數的方式
線性規劃
金惠吉：正弦交流电演示
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Mathematics
Tangent Line or Tangent
Means
Plane Figures or Shapes
Exponential Functions