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  1. Trigonometric functions - Wikipedia

    The trigonometric functions most widely used in modern mathematics are the sine, the cosine, and the tangent functions. Their reciprocals are respectively the cosecant, the secant, and the …

  2. Cotangent | Definition, Formulas, & Facts | Britannica

    Nov 14, 2025 · cotangent, one of the six trigonometric functions, which, in a right triangle ABC, for an angle A, is cot A = length of side adjacent to angle A/ length of side opposite angle A.

  3. Cotangent - Formula, Graph, Domain, Range | Cot x Formula

    The cotangent of an angle in a right triangle is defined as the ratio of the adjacent side (the side adjacent to the angle) to the opposite side (the side opposite to the angle).

  4. Cotangent - Math Open Reference

    In a right triangle, the cotangent of an angle is the length of the adjacent side divided by the length of the opposite side. In a formula, it is abbreviated to just 'cot'.

  5. Cotangent - from Wolfram MathWorld

    Nov 14, 2025 · The cotangent is implemented in the Wolfram Language as Cot [z]. The notations ctnz (Erdélyi et al. 1981, p. 7; Jeffrey 2000, p. 111) and ctgz (Gradshteyn and Ryzhik 2000, p. …

  6. Tangent and Cotangent - Definitions, Formulas, Properties, Graph

    Nov 14, 2025 · Discover everything you need to know about tangent and cotangent functions in this concise guide. Learn definitions and properties.

  7. Cotangent in Trigonometry Explained Simply - Andrea Minini

    Since the cotangent is a periodic function with a period of π, it can be studied within the interval (0, π). In this interval, the cotangent is a continuous, monotonic, and decreasing function.

  8. Cotangent Calculator - calculates cot(x) for degrees or radians

    The cotangent is a trigonometric function, defined as the ratio of the length of the side adjacent to the angle to the length of the opposite side, in a right-angled triangle.

  9. List of trigonometric identities - Wikipedia

    In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. …

  10. Cotangent Function cot x

    The cotangent function is defined and investigation of the graph of the general cotangent function and its properties such as range, period and asymptotes are also presented.