noun
- in trigonometry, the ratio of the adjacent side to the opposite side in a right triangle, or the reciprocal of the tangent
Usage: mathematics
Examples
- The cotangent of 45 degrees equals 1.
- To find the cotangent, divide the cosine by the sine.
- She calculated the cotangent using the adjacent and opposite sides of the triangle.
- The cotangent function is undefined when the sine equals zero.
- In calculus, we studied the derivative of the cotangent function.
- The cotangent of 30 degrees is approximately 1.732.