Explore the world of trigonometry by mastering right triangles and their applications, understanding and graphing trig functions, solving problems involving non-right triangles, and …

Let's extend trigonometric ratios sine, cosine, and tangent into functions that are defined for all real numbers. You might be surprised at how we can use the behavior of those functions to …

Practice Trigonometric ratios in right triangles Get 3 of 4 questions to level up!

You'll learn how to use trigonometric functions, their inverses, and various identities to solve and check equations and inequalities, and to model and analyze problems involving periodic …

Discover how to measure angles, distances, and heights using trigonometric ratios and the unit circle. Learn how to use sine, cosine, and tangent to solve real-world problems involving …

In this video, I want to give you the basics of trigonometry. And it sounds like a very complicated topic, but you're going to see that it's really just the study of the ratios of sides of triangles.

Not only are right triangles cool in their own right (pun intended), they are the basis of very important ideas in analytic geometry (the distance between two points in space) and …

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Brush up on your trigonometry skills as you measure and calculate the sides, angles, and ratios of every kind of triangle. By triangulating your understanding of the Pythagorean theorem, …

Trigonometric ratios are not only useful for right triangles, but also for any other kind of triangle. In this unit, you will discover how to apply the sine, cosine, and tangent ratios, along with the …