Question

Can someone please help me with d, g and h because I can never seem to know how to find the domain and range.

Answer 1

$g)\ y=\cos x\to y^{-1}=\arccos x.\ The\ domain:\ [-1;\ 1].\\\\h)\ y=\cos x\to y^{-1}=\arccos x.\ The\ range:\ [0;\ \pi]$