Giải các bất phương trình :
$\begin{array}{l}
1)\,\,\,\,\,{\log _{\frac{1}{2}}}\left( {x - \frac{1}{2}} \right) + \,\,{\log _{\frac{1}{2}}}\left( {x - 1} \right) \le 1\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(1)\\
2)\,\,\,\,{\log _{\frac{1}{2}}}\left( {x + \frac{1}{2}} \right) + \,\,{\log _{\frac{1}{2}}}x \ge 1\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(2)
\end{array}$