What is the abbreviation for cosine?

The abbreviation of cosine is cos, e.g., cos (30°). Important properties of a cosine function: Cosine definition is essential to understand the law of cosines – a very useful law to solve any triangle. Discover it with our law of cosines calculator! Cosine graph and table (cos 0, cos 30 degrees, cos 45 degrees...)

What is CoS (40°) 0.766?

Keep calm and read the result – in our case, cos (40°) ≈ 0.766 (remember, it's an approximate value; an exact cosine value can be found only for specific cases). Give this cosine calculator a go!

What is a cosine in physics?

Cosine definition Cosine is one of the most basic trigonometric functions. It may be defined based on a right triangle or unit circle, in an analogical way as the sine is defined: The cosine of an angle is the length of the adjacent side divided by the length of the hypotenuse.