Cotangent is one of the six trigonometric ratios which is also denoted as cotan or cot. The cotangent formula is given by the length of the adjacent side divided by the length of the opposite side in a right triangle. There is an interesting relationship between the trigonometric ratios cotangent and tangent which will be seen below.
The relationship of cotangent will also be seen with the trigonometric ratios sin and cos. Let us understand the cotangent formula using the solved examples.
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