**See Also**

functions video, identities video, trigonometric functions video, trigonometric identities video.

This math video tutorial gives a step by step explanation to a math problem on "Rewriting Triginimetric Functions Using Trigonometric Identities".

Rewriting triginimetric functions using trigonometric identities video involves functions, identities, trigonometric functions, trigonometric identities. The video tutorial is recommended for 9th Grade, 10th Grade, and/or 11th Grade Math students studying Algebra, Trigonometry, Pre-Calculus, and/or Advanced Algebra.

In mathematics, the trigonometric functions are functions of an angle. They are important in the study of triangles and modeling periodic phenomena, among many other applications. Trigonometric functions are commonly defined as ratios of two sides of a right triangle containing the angle, and can equivalently be defined as the lengths of various line segments from a unit circle.