uía # 4 del 2 periodo parte 1, 2 y 3
https://drive.google.com/file/d/1-MW8w3Q-Io0pDJg_pnl8CPKeDEK75Lcy/view?usp=sharing, https://drive.google.com/file/d/1Ie9yjxfuyzJDyVXMt05GKVxLcP5A7Bmb/view?usp=sharing, https://drive.google.com/file/d/1eSNk0S1EGQg1sJQrH87gRXInAmzMWflc/view?usp=sharing