## Trigonometry (11th Edition) Clone

We can see three points indicated on the graph: $(1,0)$ $(0,\frac{\pi}{2})$ $(-1,\pi)$ The domain is $[-1, 1]$ The range is $[0, \pi]$
$y = cos^{-1}~x$ We can see three points indicated on the graph: $(1,0)$ $(0,\frac{\pi}{2})$ $(-1,\pi)$ The domain is $[-1, 1]$ The range is $[0, \pi]$