# How do you find the value of cot (pi/2)?

Feb 11, 2016

$\cot x = \cos \frac{x}{\sin} x$
hence $\cot \left(\frac{\pi}{2}\right) = \cos \frac{\frac{\pi}{2}}{\sin} \left(\frac{\pi}{2}\right) = \frac{0}{1} = 0$