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黎曼积分
Author:
徐士权
GeoGebra
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直線的斜率
圓的切線方程
【案例】2018年全国1卷理科12题
祖冲之的期望：内棋与外棋
圓周公式的應用
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問題集
空間三坐標平面101.12.22
平行四邊形
Angle in alt.segment
练习
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Sphere
Trapezoid
Exponent
Plane Figures or Shapes
Definite Integral