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三圓外切

Author:AlexWang

New Resources

  • 兩組對邊相等和有直角的四邊形
  • 畫出對稱圖形
  • 兩組對邊相等的四邊形
  • sanjiaohanshu
  • 美國國旗 (Codex 版)

Discover Resources

  • 公切線長度的計算
  • lim sin(x)/x = 1
  • 拋物線2-焦點法
  • 二次函数随参数a,b,c的变化而变化.许兴华数学
  • 貝氏定理 (計算偽陽性/偽陰性之機率)

Discover Topics

  • Logarithm
  • Conic Sections
  • Trigonometry
  • Circle
  • Quadratic Equations
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