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- 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)
- 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'
- Cotangent - from Wolfram MathWorld
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 xxix) are sometimes used in place of cotz
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