# How do you find the coordinates of the terminal points corresponding to the following arc length on the unit circle: 11π/4?

$x = \cos \left[\frac{11 \pi}{4}\right] = \cos \left(\frac{3 \pi}{4} + 2 \pi\right) = - \cos \frac{\pi}{4} = - \frac{s q r 2}{2}$
$y = \sin \frac{\left(11 \pi\right)}{4} = \sin \left(\frac{3 \pi}{4} + 2 \pi\right) = \sin \frac{\pi}{4} = \frac{s q r 2}{2}$