Amplitud y linea media en:https://es.khanacademy.org/math/trigonometry/trig-function-graphs/intro-to-amplitude-and-midline-of-sinusoids/e/amplitude-of-trig-functions
Gráfica y Linea media en: https://es.khanacademy.org/math/trigonometry/trig-function-graphs/intro-to-amplitude-and-midline-of-sinusoids/e/midline-of-trig-functions
Ecuaciones y Linea media en:https://es.khanacademy.org/math/trigonometry/trig-function-graphs/amplitude-and-midline-of-sinusoids-from-formulas/e/find-midline-of-a-sinusoid-from-formula
Ecuaciones y amplitud en :https://es.khanacademy.org/math/trigonometry/trig-function-graphs/amplitude-and-midline-of-sinusoids-from-formulas/e/find-amplitude-of-a-sinusoid-from-formula
Grafica de funcion trigonometrica y Periodo en:https://es.khanacademy.org/math/trigonometry/trig-function-graphs/period-of-sinusoids/e/period-of-trig-functions
Angulos en radianes en: https://es.khanacademy.org/math/geometry/cc-geometry-circles/intro-to-radians/e/degrees_to_radians
Graficar funciones trigonometricas sinusoidales en:https://es.khanacademy.org/test-prep/fr-twelveth-grade-math/analyse-fonctions-sinus-et-cosinus/representation-graphique-des-fonctions-trigonometriques/e/graphs_of_sine_and_cosine
