Are you aware of every sub-discipline in the
category of mathematics? Perhaps not.
You might discover something very exciting
that you didn't know existed!
|In ancient times, trigonometry (the study of
angles) was one of many sub-topics in
Euclidian-style synthetic geometry.
Developments in science and technology—notably
astronomy, navigation, and surveying -- raised the
study of triangles into a realm of its own where it
could be studied and applied with the powerful
analytical tools of algebra.
Although you can find courses and textbooks
called "Trigonometry," the subject is often
included in courses and textbooks called
The Unit Circle: Sine and Cosine Functions
Trigonometric Identities and Equations
Further Applications of Trigonometry
Some of these tutorials might require a PDF reader. If you do not have an the Adobe
Acrobat Reader installed on your device, you can
download a free copy here. Many also require the Google Play app for
Trigonometric Functions (1)
Radian Measure and Dynamic Trigonometry
Introduction to Trigonometry
A series of 53 video tutorials
by Derek Owens.
Your Proof of