Honors Algebra II
Cotangent is a trigonometric function defined as the ratio of the adjacent side to the opposite side in a right triangle. It can also be expressed as the reciprocal of the tangent function, meaning $$ ext{cot}(x) = \frac{1}{\tan(x)}$$. This relationship is key when using the unit circle, where cotangent corresponds to the x-coordinate divided by the y-coordinate for a given angle.
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