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椭圆的定义

Author:梁航宇

New Resources

  • 圓的切線方程
  • 垂直線的斜率
  • 正方形雪花图案
  • 双心四边形
  • 龙形曲线-分形龙

Discover Resources

  • An angle problem
  • CLOCK
  • thm 11,12
  • 沈暐珊 橢圓反射
  • n星角 のコピー
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