Função Injetora ou Função Injetiva | MEM #22

🔗 Buy the ENEM Math 800+ course: https://pay.hotmart.com/C97770743H Discover our platform at http://www.matematicario.com.br Let's understand what injective functions are. Come with me! Matemática Rio is a channel with free and creative online math classes! Learn compelling content in just a few minutes! Created by Professor Rafael Procopio: Postgraduate degree in Mathematics Teaching (UFRJ); Mathematics teacher in the Rio de Janeiro municipal public school system. Matemática Rio on social media: Facebook:   / matematicario   Twitter:   / matematicario   Google+: http://www.google.com/+MatematicaRio