## The Primitives of Precalculus

by Robert Curtis

# Triangles and Circles - Homework Problems

- P9: Trigonometric Functions:
- P9.2: Triangles and Circles:
- P9.2.h: Homework Problems:
- P9.2.h.1: ChalkTalk Help Movie
- P9.2.h.2: LiveMath Help Movie
- P9.2.h.3: Verify Similar Triangles Theorem LiveMath Notebook
- P9.2.h.4: LiveMath Notebook
- P9.2.h.5: 30-60-90 and 45-45-90 Triangles LiveMath Notebook

Curriculum Home with Demo Access

## Distance Calculus - Student Reviews

*Date Posted: Jun 6, 2020*

Review by: Douglas Z.

Courses Completed: Multivariable Calculus, Differential Equations, Linear Algebra, Probability Theory

Review: I loved these courses. So in depth and comprehensive. The mix of software and math curriculum was tremendously helpful to my future studies and career in engineering. I highly recommend these courses if you are bored of textbook courses.

Transferred Credits to: University of Massachusetts, Amherst

*Date Posted: Jan 13, 2020*

Review by: Joe

Courses Completed: Calculus II

Review: This is the most interactive and productive online course I have ever taken. I had taken calculus before but never understood some of the underlying concepts until I took this course. If you want to really learn calculus in a way that will stay with you for the rest of your life, take this course.

Transferred Credits to: The college of New Jersey

*Date Posted: Jan 12, 2020*

Review by: Brian Finley

Courses Completed: Calculus II

Review: I took Calculus II through Distance Calculus and can't recommend it enough. Being able to take the course at my own pace while I was working full time was tremendously helpful, especially since I hadn't taken a math course for 5 years prior. The instruction was excellent and the software they used to teach the course was intuitive and facilitated the learning process very well. This calc II class enabled me to take multivariable calc, linear algebra, and real analysis at Harvard University's extension school, which ultimately qualified me for the economics PhD program that I will graduate from next year. 8 years on, I'm still grateful to Professor Curtis and Distance Calculus.