Question

How do I go about this?

Draw a 30-60-90 triangle. Label all angle measures and side relationships. (Know how and done) Using side relationships from the figure, show that the following trigonometric identities hold true for the given angles:

Answer 1

a) \[\tan 60° = \frac{ \sin 60° }{ \cos 60 }\]

Answer 2

b) \[\sin ^{2} (30°) + \cos ^{2} (30°) = 1\]