Tangent and Cotangent Identities | Trig Identities Cheat Sheet Sines and cosines are two trig functions that factor heavily into any study of trigonometry they have their own formulas and rules that you’ll want to understand if you plan to study trig for very long.ĭefinition of the trig functions Right Triangle Definition Unit Circle Definition
Get to know some special rules for angles and various other important functions, definitions, and translations. Trig Cheat Sheet: Trigonometry is the study of triangles, which contain angles, of course.
