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Reverted edits by Conservacripple (talk) to last revision by CSGuy
'''Cotangent''' is a [[trigonometric function]] describing the ratio of the adjacent side to the opposite side in a [[right triangle]]. It is often abbreviated ''cotan''.
<math>\cot \theta = \frac{\cos \theta}{\sin \theta} = \tan \left(\frac{\pi}{2} - \theta \right) = \frac{1}{\tan \theta} \,</math>
[[Category:Trigonometry]]