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Cos: meaning, definitions and examples

๐Ÿงฎ
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cos

 

[ kษ”s ]

Noun
Context #1 | Noun

mathematics

Cosine is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the length of the hypotenuse. It is commonly denoted as 'cos' and is used in various applications within geometry and physics.

Synonyms

ratio, trigonometric function

Examples of usage

  • The cosine of 0 degrees is 1.
  • In a right triangle, cos(theta) = adjacent/hypotenuse.
  • To find the cosine of an angle, use the unit circle.
Context #2 | Noun

abbreviation

Cos can also refer to 'cosmic' or 'cosmetics', depending on the context of the conversation. It is frequently used as an abbreviation in informal contexts.

Synonyms

cosmetics, cosmic

Examples of usage

  • She works in the cosmetics industry.
  • He is fascinated by cos-related concepts.
  • They're launching a new line of cos products.

Translations

Translations of the word "cos" in other languages:

๐Ÿ‡ต๐Ÿ‡น cos

๐Ÿ‡ฎ๐Ÿ‡ณ เค•เฅ‹เคธ

๐Ÿ‡ฉ๐Ÿ‡ช cos

๐Ÿ‡ฎ๐Ÿ‡ฉ cos

๐Ÿ‡บ๐Ÿ‡ฆ ะบะพั

๐Ÿ‡ต๐Ÿ‡ฑ cos

๐Ÿ‡ฏ๐Ÿ‡ต ใ‚ณใ‚ตใ‚คใƒณ

๐Ÿ‡ซ๐Ÿ‡ท cos

๐Ÿ‡ช๐Ÿ‡ธ cos

๐Ÿ‡น๐Ÿ‡ท cos

๐Ÿ‡ฐ๐Ÿ‡ท ์ฝ”์‚ฌ์ธ

๐Ÿ‡ธ๐Ÿ‡ฆ ูƒูˆุณ

๐Ÿ‡จ๐Ÿ‡ฟ cos

๐Ÿ‡ธ๐Ÿ‡ฐ cos

๐Ÿ‡จ๐Ÿ‡ณ ไฝ™ๅผฆ

๐Ÿ‡ธ๐Ÿ‡ฎ cos

๐Ÿ‡ฎ๐Ÿ‡ธ cos

๐Ÿ‡ฐ๐Ÿ‡ฟ cos

๐Ÿ‡ฌ๐Ÿ‡ช แƒ™แƒแƒก

๐Ÿ‡ฆ๐Ÿ‡ฟ cos

๐Ÿ‡ฒ๐Ÿ‡ฝ cos

Etymology

The term 'cosine' comes from the Latin words 'complementi sinus', meaning 'sine of the complement'. The sine function traces its origins back to ancient Indian mathematics, where it was used to solve problems involving right triangles. The term 'cosine' was coined in the 16th century by the mathematician Gottfried Wilhelm Leibniz, who synthesized these ideas, combining the concepts of angles and triangles with his own mathematical developments in calculus. Furthermore, the abbreviation 'cos' began to be used widely in mathematical contexts by the 19th century, becoming a standard notation in trigonometry. The modern usage of 'cos' in mathematics solidified its place as an essential framework for understanding angles and their relationships to various geometric shapes and phenomena.

Word Frequency Rank

Ranked #11,085, this word falls into high-advanced vocabulary. It appears less frequently but is valuable for expressing precise meanings in specific contexts.