Web三角関数（さんかくかんすう、英: trigonometric function ）とは、平面三角法における、角の大きさと線分の長さの関係を記述する関数の族、およびそれらを拡張して得られる … The other four trigonometric functions (tan, cot, sec, csc) can be defined as quotients and reciprocals of sin and cos, except where zero occurs in the denominator. It can be proved, for real arguments, that these definitions coincide with elementary geometric definitions if the argument is regarded as an angle given in … See more In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions ) are real functions which relate an angle of a right-angled triangle to ratios of two side lengths. They are widely … See more If the acute angle θ is given, then any right triangles that have an angle of θ are similar to each other. This means that the ratio of any two side lengths depends only on θ. Thus these six … See more The six trigonometric functions can be defined as coordinate values of points on the Euclidean plane that are related to the unit circle, … See more The modern trend in mathematics is to build geometry from calculus rather than the converse. Therefore, except at a very elementary level, … See more Conventionally, an abbreviation of each trigonometric function's name is used as its symbol in formulas. Today, the most common versions of these abbreviations are "sin" for sine, "cos" for cosine, "tan" or "tg" for tangent, "sec" for secant, "csc" or "cosec" for … See more In geometric applications, the argument of a trigonometric function is generally the measure of an angle. For this purpose, any angular unit is convenient. One common unit is See more The algebraic expressions for the most important angles are as follows: Writing the … See more

Cotangent Definition (Illustrated Mathematics Dictionary)

WebFeb 14, 2024 · The cotangent is an unbounded odd periodic function (with period $\pi$). The cotangent and the tangent are related by. $$\operatorname {cotan}x=\frac {1} {\tan … WebIn a right angled triangle, the cotangent of an angle is: The length of the adjacent side divided by the length of the side opposite the angle. The abbreviation is cot. cot (θ) = adjacent / opposite. It is not commonly used, and is equal to 1/tangent. switching from saxenda to wegovy dose

三角関数 - Wikipedia

WebFeb 25, 2024 · cotangent ( plural cotangents ) ( trigonometry) In a right triangle, the reciprocal of the tangent of an angle. Symbols: cot, ctg or ctn Translations [ edit] trigonometric function Catalan [ edit] Etymology [ edit] co- +‎ tangent Pronunciation [ edit] ( Balearic) IPA ( key): /ko.təɲˈʒent/ ( Central) IPA ( key): /ku.təɲˈʒen/ WebSep 21, 2009 · Cotangent is 1 over tangent, secant is 1 over sine, and cosecant is 1 over cosine. What are functions in trigonometry? The basic functions of trigonometry are: sine cosine tangent secant cosecant... WebTrigonometry (from Ancient Greek τρίγωνον (trígōnon) 'triangle', and μέτρον (métron) 'measure') is a branch of mathematics concerned with relationships between angles and ratios of lengths. The field emerged in … switching from s corp to llc