## The Primitives of Precalculus

by Robert Curtis

# Solving Trigonometric Equations - Inverse Trigonometric Functions

- P9: Trigonometric Functions:
- P9.5: Solving Trigonometric Equations:
- P9.5.b: Inverse Trigonometric Functions:
- P9.5.b.1: ChalkTalk Help Movie
- P9.5.b.2: LiveMath Notebook
- P9.5.b.3: LiveMath Help Movie

Curriculum Home with Demo Access

## Distance Calculus - Student Reviews

*Date Posted: Dec 9, 2019*

Review by: Louisa A.

Courses Completed: Calculus I

Review: My microeconomics class required college-level calculus as a prerequisite, and I didn't want to wait until next year to take the class. So, I took DC's Calculus I class over the summer, so I could register for econ when I got back to school this fall. I actually think I got more help taking the class online than I would have in the huge lecture classes here. Prof. Curtis was really clear in explaining concepts and talking me through the topics that I was having trouble with. It took me about 10 weeks to finish the class, which didn't seem too long and didn't feel rushed. My friends who are in calculus now, trying to finish the prereq, are pretty jealous!

*Date Posted: Sep 6, 2020*

Review by: Mark L.

Courses Completed: Applied Calculus

Review: Great course. Because of this class I was able to meet the entry requirements for my EMBA program on a tight time window in addition to sharpening math skills from classes taken over 15 years ago!

Transferred Credits to: MIT

*Date Posted: Jan 13, 2020*

Review by: Daniel Marasco

Courses Completed: Multivariable Calculus

Review: This course was more affordable than many, and the flexible format was terrific for me, as I am inclined to work very diligently on tasks on my own. It could be dangerous for a person who requires external discipline more, but it works well for self-starters, allowing you to prioritize when you have other pressing work. I was a full time teacher adding a math certification, and this course allowed me to master the math while working around my teaching schedule and fitting work into moments here and there when I had time. I was able to transfer the credits to Montana State University, Bozeman for my teaching internship program without a hitch. The instructors were all very helpful and patient, even when I failed to see a ridiculously simple solution on one problem after 20 emails back and forth. Overall, I was more pleased with my experience in this class than I was with any of my other 9 courses.

Transferred Credits to: Montana State University, Bozeman