Dive into a comprehensive series of precalculus videos focusing on trigonometry. Explore fundamental concepts including angles, the unit circle, right triangle trigonometry, trigonometric functions and their graphs, inverse trigonometric functions, and practical applications. Learn to measure and convert angles, work with special coordinates on the unit circle, evaluate trigonometric functions, graph sine, cosine, tangent, cotangent, secant, and cosecant functions, and solve right triangles. Master transformations of trigonometric graphs, understand reference angles, and apply trigonometric concepts to word problems and simple harmonic motion. Enhance your mathematical foundation with this thorough introduction to trigonometry, preparing you for advanced mathematical studies.