/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: cfrs2010 https://cdn.slidesharecdn.com/profile-photo-cfrs2010-48x48.jpg?cb=1523168454 Professor de Matemática do IFRS- Câmpus Ibirubá