Math 39: Trigonometry Last updated Mar 26, 2021 Save as PDF Detailed Licensing Front Matter Page ID59618 ( \newcommand{\kernel}{\mathrm{null}\,}\) Front Matter1: Trigonometric Functions2: Periodic Functions and Non-Right Triangles3: Trigonometric Identities and Equations4: Further Applications of Trigonometry5: AppendixBack Matter