CÁLCULO
Parte 1 https://www.youtube.com/watch?v=PFcUHmqcjMs&t=28s https://www.youtube.com/watch?v=xhh4Ef9adAc&t=43s Parte 2 https://www.youtube.com/watch?v=GiuTYADWvgA https://www.youtube.com/watch?v=82r6VAu4X80 Juan Diego Rubio Vallejo 11-E