Recent content by XJAPAN

  1. X

    Undergrad Finding the equation of a bitangent line to a curve

    http://userdisk.webry.biglobe.ne.jp/020/691/47/N000/000/006/148475134078075794177.gif
  2. X

    Undergrad Finding the equation of a bitangent line to a curve

    http://userdisk.webry.biglobe.ne.jp/020/691/47/N000/000/006/148475134078075794177.gif Dual curve.