Learn to evaluate the half angle for tangent on the unit circle

The video tutorial explains how to simplify a trigonometric expression involving cosine and sine. It starts with the expression 1 minus cosine of U divided by sine of U, identifies the coordinate point, and simplifies the expression by combining terms and rewriting fractions. The tutorial concludes with the final simplified expression.

What happens when you divide a fraction by another fraction?

What is the final result after simplifying the expression?