Dive into a comprehensive 73-minute video lecture on trigonometry fundamentals, exploring topics from basic concepts to advanced functions. Begin with an intriguing mystery about cos(x)^2 before delving into core trigonometric principles. Learn how to graph and translate trigonometric functions, understand SohCahToa, and solve practical problems like calculating the lean of a tower. Master the computation of various trig functions, including sin(π/6) and cos(π/12), and explore the properties of negative angles. Advance to more complex concepts, such as graphing tan(θ), and enjoy interactive elements like live questions and on-screen statistics. Benefit from clear explanations, engaging animations, and a structured approach to mastering trigonometry essentials.