Trigonometric Identities

What is trigonometry? Trigonometry is a branch of mathematics. The word itself comes from the Greek trigōnon (meaning "triangle") and Metron ("measure"). As the name suggests, trigonometry mainly involves angles and triangles. In particular, it defines and uses the relationship and ratio between angles and sides in a triangle. Therefore, the main application is to solve triangles, especially right triangles, but you can also solve any other type of triangle you like. Trigonometric Identities  has many applications: from everyday problems, such as calculating the height or distance between objects and satellite navigation systems, astronomy and geography. In addition, the sine and cosine functions are the basis for describing periodic phenomena-because of them, we can describe oscillating motion (simple pendulum) and waves such as sound, vibration or light. Trigonometric functions in a right triangle Trigonometric functions and trigonometric functions are used in man...