Trigonometry - Week 9

This trigonometry textbook takes the learner from a basic understanding of angles and triangles through the use of polar coordinates on the complex plane. Written by a mathematician-engineer, examples and problems here are used to...

This extensive chapter gives learners a new angle on that old geometry favorite, trigonometry. From the unit circle to right triangles, the role of trigonometric ratios is explored through explanation of theory and working application...

Looking for a fun and creative way to celebrate Pi Day? Then this is the resource for you. From a scavenger hunt and trivia contest to PowerPoint presentations and skills practice worksheets, this collection of materials is a...

Section seven of twelve turns the mathematical eye toward higher-level concepts. From radians in the unit circle to the complex number system, logarithms to advanced factoring methods, this lesson—just past the halfway point in the...

What angle? Groups determine the height of the lunar lander as it ascends from the surface of the moon and calculate the angle of elevation of the lunar lander at specific times and distances. The provided series of questions lead the...

Section six in this series of twelve units takes a turn toward modeling, with lessons on exponential growth and decay, determining angle of rotation, and linear programming. Theory isn't neglected, however, as learners also confront...

Use inverse trigonometric functions to work with ramps, rabbits, and Talladega. The class models real-world situations with trigonometric functions and solves them using inverses in the 15th installment of a 16-part series. Pupils solve...

Section eight of the twelve-part series continues the trend towards a higher level of algebraic rigor. Emphasis on graphing and interpreting results reigns supreme in this section, be the graphs piecewise, logarithmic, or radical....

If you have ever injured your shoulder, you know it takes a while to improve your arm's range of motion. In this real-world example, young mathematicians gain insight into the world of physical therapy while they analyze a case study...

Sal solves an interesting problem from the American Invitational Mathematics Exam from 2003 that uses the Pythagorean Theorem, knowledge of geometric principles of triangles, and the use of trigonometric identities.