مساله آپولونیوس

https://people.iut.ac.ir/fa/taherian/content/%D9%85%D8%B3%D8%A7%D9%84%D9%87-%D8%A2%D9%BE%D9%88%D9%84%D9%88%D9%86%DB%8C%D9%88%D8%B3