Cotangent Function is Odd/Examples/2 x

Examples of Cotangent Function is Odd

 * $\map \cot {-2 x} = -\cot 2 x$

Proof
From Cotangent Function is Odd:


 * $\map \cot {-\theta} = -\cot \theta$

The result follows by setting $\theta = 2 x$.