\textbf{112.} The domain of the function $f(x) = \log_6 \dfrac{1}{6 + \sqrt{|x| - |x|}}$ is: \medskip (1) $(-9, 9)$ \hfill (2) $(-4, 9)$ \hfill (3) $(4, 9)$ \hfill (4) $(-4, 4)$ \medskip