
Sine and cosine - Wikipedia
The sine and cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that of the hypotenuse.
Sine, Cosine and Tangent - Math is Fun
Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: To calculate them: Divide the length of one side by another side. Example: What is the sine of 35°? Using this triangle (lengths are only to one decimal place): = …
COS - Definition by AcronymFinder
151 definitions of COS. Meaning of COS. What does COS stand for? COS abbreviation. Define COS at AcronymFinder.com
COS | English meaning - Cambridge Dictionary
COS definition: 1. not standard for because: 2. written abbreviation for cosine specialized 3. not standard for…. Learn more.
Cosine Function (Cos) - Definition, Formula, Table, Graph, …
The cosine function (or cos function) in a triangle is the ratio of the adjacent side to that of the hypotenuse. The cosine function is one of the three main primary trigonometric functions and it is itself the complement of sine(co+sine).
Cos Meaning in Mathematics (Trigonometry cos) - BYJU'S
The cos meaning in trigonometry defines the cosine of an angle. This angle is an acute angle in a right angled triangle, which is considered to find the ratios. Thus, cosine of an angle, in a right-triangle, is equal to the ratio of adjacent side of that angle and hypotenuse of the triangle.
Cosine | Definition, Formulas, & Facts | Britannica
2025年3月13日 · cosine, one of the six trigonometric functions, which, in a right triangle ABC, for an angle A, is cos A = length of side adjacent to angle A/ length of hypotenuse. (The other five trigonometric functions are sine [sin], tangent [tan], secant …
Cosine Definition (Illustrated Mathematics Dictionary) - Math is …
divided by the length of the hypotenuse. Illustrated definition of Cosine: In a right angled triangle, the cosine of an angle is: The length of the adjacent sidebrdivided by the length...
Cosine Function in Math – Definition, Formula, Examples
2025年2月4日 · The cosine function (cos) relates an angle of a right triangle to the ratio of the length of the adjacent side (the side next to the angle) to the hypotenuse (the longest side of the triangle). In the context of the unit circle (a circle with radius 1), the cosine of an angle corresponds to the x-coordinate of a point on the circle’s circumference.
COS Definition & Meaning - Merriam-Webster
What does the abbreviation COS stand for? Meaning: companies.