Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent

A Geometric Understanding of the Trigonometric Functions (and proof of tan𝜃 ≡ sin𝜃/cos𝜃)

All 6 Trig Functions on the Unit Circle

Trig Visualized: One Diagram to Rule them All (six trig functions in one diagram)

Trigonometry For Beginners!

Trigonometry Concepts - Don't Memorize! Visualize!

Where do Sin, Cos and Tan Actually Come From - Origins of Trigonometry - Part 1

Visualizing Trigonometry: Tangent Function

Tangent Wave | Tan Function | Trigonometry | Explanation on a Giant Wheel | Slope | Learnability

Unit Circle Trigonometry - Sin Cos Tan - Radians & Degrees

09 - Unit Circle - Definition & Meaning - Sin(x), Cos(x), Tan(x), - Sine, Cosine & Tangent

Trigonometry - Basic Concept (3 of 8) 2. Definition of Tangent

Why are Tangent & Secant given their names?

Unit Circle Definition of Trig Functions

Similarity to define sine, cosine, and tangent | Basic trigonometry | Trigonometry | Khan Academy

Trigonometric Functions of Any Angle - Unit Circle, Radians, Degrees, Coterminal & Reference Angles

Sum and Difference Identities & Formulas - Sine, Cosine, Tangent - Degrees & Radians, Trigonometry

Redefining the Trig Functions on the Unit Circle (1 of 2: The Basic Concept)

Definition of Trigonometric Functions

Tangent graph | Graphs of trig functions | Trigonometry | Khan Academy