What is Cosine Function?
The cosine function, denoted as cos(θ), is defined as the ratio of the length of the adjacent side to the length of the hypotenuse in a right-angled triangle.
[Tex] \cos(\theta) = \frac{\text{adjacent}}{\text{hypotenuse}} [/Tex]
How to Find the Cosine of Common Angles?
Finding the cosine of common angles is a fundamental aspect of trigonometry, it is important for solving various mathematical and real-world problems involving angles and triangles. Common angles such as 0°, 30°, 45°, 60°, and 90° have specific cosine values that are frequently used in calculations.
In this article we will learn different methods to find the cosine of some common angles.
Table of Content
- What is Cosine Function?
- How to Find the Cosine of Common Angles?