How do we determine when there is one or two cases for the law of sines

The video tutorial discusses the concept of having two solutions in trigonometry, focusing on the sine and cosine functions. It explains how to find angles where sine or cosine equals a specific value, using the unit circle and inverse functions. The tutorial highlights the importance of considering both acute and obtuse angles when solving trigonometric equations, especially when using inverse sine. It also covers how to calculate these angles and the implications of having two possible solutions.

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