Calculus of trigonometric function
Use the triangle given in GeoGebra, move point B to obtain the desired angle and, according to the values of the sides, compute the trigonometric functions.
sin(30)
sin(45)
cos(45)
cos(60)
tan(60)
tan(45)
Now, use the previous results to answer the following questions:
sin(150)
sin(135)
cos(135)
cos(120)
tan(120)
tan(135)