Tutorial for evaluating tangent of an angle on the unit circle first quadrant

The video tutorial covers the first quadrant of the unit circle, explaining the significance of angles π/6, π/4, π/3, and π/2, which correspond to 30, 45, 60, and 90 degrees, respectively. It highlights the coordinate points associated with these angles and introduces the concept of special right triangles within the unit circle, emphasizing that each triangle has a radius of 1. The tutorial further explores the tangent function, illustrating how it can be simplified using the coordinates of the unit circle, particularly for a 45-degree triangle where the tangent is y/x.

What is the relationship between the sides of a 45-degree triangle in the unit circle?

Describe how you can use Y and X coordinates instead of opposite and adjacent sides in the unit circle.