# My course

## Trigonometry

### Start learning with Patrick

Jump on your first topic

- Concept Video2:58Rationalizing Denominators0. Review of College Algebra / Rationalizing Denominators
- Practice problem
Rationalize the denominator.

$-\frac{5}{2\sqrt7}$

0. Review of College Algebra / Rationalizing Denominators - Practice problem
Rationalize the denominator.

$\frac{6+\sqrt{x}}{-\sqrt{x}}$

0. Review of College Algebra / Rationalizing Denominators

### Most popular topics of the week

These are the topics other students have been focusing on.

- 14videos inTopic45 minutesTrigonometric Functions on Right Triangles2. Trigonometric Functions on Right Triangles
- 11videos inTopic32 minutesGraphs of the Sine and Cosine Functions4. Graphing Trigonometric Functions
- 6videos inTopic17 minutesPythagorean Theorem & Basics of Triangles0. Review of College Algebra