Introduzione alle Sezioni Coniche

Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2wF/ Esercizi: http://www.khanacademy.org/exercise/recognizing_conic_sections Traduzione in Italiano del video Introduction to Conic Sections http://www.youtube.com/watch?v=0A7RR0oy2ho http://www.khanacademy.org/video/introduction-to-conic-sections?playlist=Algebra Help us caption & translate this video! http://amara.org/v/B2wF/