+
Inverse Cosine

Inverse Cosine

Rating:
Rating
(0)
Author: Graham Pardun
Description:
This lesson will introduce the inverse cosine ratio, and demonstrate how to apply it to solve for an unknown angle of a right triangle.
(more)
See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

25 Sophia partners guarantee credit transfer.

221 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 20 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

The Inverse Cosine Function (Also Known As Arccosine)

Arccosine is the inverse of cosine -- so I'll review what "cosine" means in the first place, and what an inverse function is in general. Then we'll go through the process of using the arccosine function to determine unknown angles, and all will become clear!