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better definition - I got a 760 in math, so please listen to me :-
In [[trigonometry]], the '''tangent''' is defined as a relationship between the [[sine]] and [[cosine]] functions:
In [[trigonometry]], the '''tangent''' of an angle in a [[right triangle]] is defined as the ratio of the opposite and adjacent sides.
We can also see a relationship between the [[sine]] and [[cosine]] functions:
<math>\tan \theta = \frac{\sin \theta}{\cos \theta} = \cot \left(\frac{\pi}{2} - \theta \right) = \frac{1}{\cot \theta} \,</math>
<math>\tan \theta = \frac{\sin \theta}{\cos \theta} = \cot \left(\frac{\pi}{2} - \theta \right) = \frac{1}{\cot \theta} \,</math>