Solving a trigonometric equation with our angle divided by 4

The video tutorial explains how to work with angles, particularly focusing on isolating the sine function and finding solutions using the unit circle. It covers the process of identifying when the sine function equals negative values and how to find all possible solutions by adding multiples of 2π. The tutorial emphasizes understanding the unit circle and the significance of specific angles where the sine function is negative.

What are the two angles found in the unit circle where sine is negative?

How do you apply the multiple angle or half angle formulas to find solutions for sine equations?