Answer
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 $[0, \pi]$
Work Step by Step
$y = cos^{-1}~x$
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 $[0, \pi]$
