![trigonometry - Since $\tan(25\pi/2)$ is undefined, and $\cot x = \frac{1}{\tan x}$, then why isn't $\cot(25\pi/2)$ undefined instead of $0$? - Mathematics Stack Exchange trigonometry - Since $\tan(25\pi/2)$ is undefined, and $\cot x = \frac{1}{\tan x}$, then why isn't $\cot(25\pi/2)$ undefined instead of $0$? - Mathematics Stack Exchange](https://i.stack.imgur.com/tFfsY.gif)
trigonometry - Since $\tan(25\pi/2)$ is undefined, and $\cot x = \frac{1}{\tan x}$, then why isn't $\cot(25\pi/2)$ undefined instead of $0$? - Mathematics Stack Exchange
![trigonometry - Since $\tan(25\pi/2)$ is undefined, and $\cot x = \frac{1}{\tan x}$, then why isn't $\cot(25\pi/2)$ undefined instead of $0$? - Mathematics Stack Exchange trigonometry - Since $\tan(25\pi/2)$ is undefined, and $\cot x = \frac{1}{\tan x}$, then why isn't $\cot(25\pi/2)$ undefined instead of $0$? - Mathematics Stack Exchange](https://i.stack.imgur.com/PLJhQ.gif)
trigonometry - Since $\tan(25\pi/2)$ is undefined, and $\cot x = \frac{1}{\tan x}$, then why isn't $\cot(25\pi/2)$ undefined instead of $0$? - Mathematics Stack Exchange
![trigonometry - Why is $\pi/2$ omitted from the solution of $\cot x = 3 \sin 2x$? - Mathematics Stack Exchange trigonometry - Why is $\pi/2$ omitted from the solution of $\cot x = 3 \sin 2x$? - Mathematics Stack Exchange](https://i.stack.imgur.com/JBdPP.png)
trigonometry - Why is $\pi/2$ omitted from the solution of $\cot x = 3 \sin 2x$? - Mathematics Stack Exchange
limit ( limit x → pi/2) (cot x - cos x)/(pi - 2x)^3 equals to - Sarthaks eConnect | Largest Online Education Community
![SOLUTION: I'm in pre calculus and I need help with solving a problem. It is y=cot(x-pi/4) I need to find the period, frequency, phase shift, vertical shift, amplitude, and the asymptotes. SOLUTION: I'm in pre calculus and I need help with solving a problem. It is y=cot(x-pi/4) I need to find the period, frequency, phase shift, vertical shift, amplitude, and the asymptotes.](http://theo.x10hosting.com/2015/100103.jpg)