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Author:
周志康
GeoGebra
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平行線的斜率
画直线等分三角形的面积
直線的斜率
球体的体积推导
【案例】2018年全国1卷理科12题
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動圓的圓心軌跡為橢圓
Prism and Cylinder 4
彩色包絡球
畢氏定理
萬花筒
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Multiplication
Probability
Secant Line or Secant
Similar Triangles
Interest Calculation