Derivative of Cotangent of Function

Theorem
Let $u$ be a differentiable real function of $x$.

Then:
 * $\map {\dfrac \d {\d x} } {\cot u} = -\csc^2 u \dfrac {\d u} {\d x}$

where $\cot$ is the cotangent function and $\csc$ is the cosecant function.

Also see

 * Derivative of Sine of Function
 * Derivative of Cosine of Function


 * Derivative of Tangent of Function


 * Derivative of Secant of Function
 * Derivative of Cosecant of Function