Answer
Domain: $(-\infty,-1]\cup[1,\infty)$
Range: $[-\frac{\pi}{2},0)\cup(0,\frac{\pi}{2}]$
Work Step by Step
According to the table on page 253 of the textbook, the domain is $(-\infty,-1]\cup[1,\infty)$ while the range is $[-\frac{\pi}{2},0)\cup(0,\frac{\pi}{2}]$.
