19: Trigonometry Last updated Jun 10, 2021 Save as PDF 18.4.2: Mathematical Modeling with Exponential and Logarithmic Functions 19.1: Introduction to Trigonometric Functions Page ID59817 The NROC Project ( \newcommand{\kernel}{\mathrm{null}\,}\) 19.1: Introduction to Trigonometric Functions19.1.1: Identifying the Six Trigonometric Functions19.1.2: Right Triangle Trigonometry19.1.3: Unit Circle Trigonometry19.2: Graphing Trigonometric Functions19.2.1: Degree and Radian Measure19.2.2: Graphing the Sine and Cosine Functions19.2.3: Amplitude and Period