## Sine and Cosine Functions

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JC

10 avr. 2021

Excellent course. Trigonometric concepts that, in previous courses, had been intimidating, confusing and tedious became dramatically less so.

AM

20 nov. 2021

Absolutely loved this course. i recommend it to every beginner

À partir de la leçon

Module 3: Sine and Cosine as Periodic Functions

Sine and cosine are now introduced using the unit circle, which is the circle centered at the origin with radius one. This definition of our key periodic functions extends the definition originally introduced with right triangles.

### Enseigné par

• #### Joseph W. Cutrone, PhD

Senior Lecturer and Director of Online Programs