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$\begin{array}{l} 1)\,\,\,\,\,\left[ \begin{array}{l} 2 - \sqrt 2 < x \le \frac{3}{4}\\ \frac{{13}}{4} \le x < 2 + \sqrt 2 \end{array} \right.\,\,\, \to \left[ \begin{array}{l} x \le \frac{3}{4}\\ x \ge \frac{{13}}{4} \end{array} \right.\\ 2)\,\,\,\frac{{1 - 3\sqrt 3 }}{2} \le x < - 2\,\,\,\,\,\,\,;\,\,\,\,\,\,\,3 < x \le \frac{{1 + 3\sqrt 3 }}{2} \end{array}$
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