Intro to Trignometry

Introduction to the topic of Infrared spectroscopy:-

• Use the resource to introduce the simple trigonometric ratios and their relation to right angled triangles.
• First introduce the basic trigonometric functions like sine, cosine and tangent, and how they relate to the study of triangles and circles.
• Then, discuss the trigonometric ratios in right triangles and how to use them to solve for unknown sides and angles. Use the embedded video to discuss several examples to enable your students to understand these concepts better.

Trigonometry | Khan Academy.