Distance Calculus @ Roger Williams University is in full operation during COVID-19 Emergency

The Primitives of Precalculus
by Robert Curtis

Identities - Half-Angle Identities

  • P9: Trigonometric Functions:
    • P9.4: Identities:
      • P9.4.e: Half-Angle Identities:
        • P9.4.e.1: LiveMath Notebook
        • P9.4.e.2: LiveMath Help Movie
<<<< Back

Curriculum Home with Demo Access

Distance Calculus Courses Frequently Asked Questions
Math 213: Calculus I (4 credits)
Math 214: Calculus II (4 credits)
Math 351: Multivariable Calculus (4 credits)
(same as Calculus III, Calculus IV, Vector Calculus)
Math 317: Differential Equations (3 credits)
Math 331: Linear Algebra (3 credits)
Math 315: Probability Theory (3 credits)
Calculus-Based Statistics
Math 207: Applied Calculus (3 credits)
Survey of Calculus • Liberal Arts Calculus
< Engineering Calculus I
Math 136: Precalculus (4 credits)
University Accreditation
Costs
Transferring Credits
Flexible Enrollment
Enroll Any Time → Finish Fast
Asynchronous - No Meeting Times
Course Syllabi PDFs
How Long To Finish Course
Introductory Videos






Distance Calculus - Student Reviews

rating star iconrating star iconrating star iconrating star iconrating star icon
Date Posted: Apr 6, 2020
Review by: Paul Simmons
Courses Completed: Multivariable Calculus, Differential Equations
Review: I took Multivariable and Diff Eq during the summer. The DiffEq course was awesome - very useful for my physics and engineering course. I was unsure about Mathematica at first, but I got the hang of it quickly. Thank you Distance Calculus!
Transferred Credits to: University of Oregon



rating star iconrating star iconrating star iconrating star iconrating star icon
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



rating star iconrating star iconrating star iconrating star iconrating star icon
Date Posted: Feb 25, 2020
Review by: Jessica M.
Courses Completed: Applied Calculus
Review: I highly recommend this course. I started the Kennedy School at Harvard with a last-minute admission, but my application required the Liberal Arts calculus course, so I had to finish the course in 3 weeks. Diane was an awesome instructor! The class was surprisingly interesting. If you need to take calculus fast, this is the program to use.
Transferred Credits to: Kennedy School of Government, Harvard University