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橢圓之極偶 / polarity for ellipse

Author:XIE Yuheng

New Resources

  • 四邊形的特性
  • 兩組對邊相等的四邊形
  • 拼砌四邊形
  • 異分母分數減法
  • 【案例】2018年全国1卷理科12题

Discover Resources

  • happy birthday
  • Building Cylinders 建造圓柱體
  • 用星星來比較圖形的大小
  • Angles formed by two straight lines and transversal
  • 中华人民共和国国旗

Discover Topics

  • Line Segment
  • Tangent Line or Tangent
  • Cylinder
  • Parabola
  • Arithmetic
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