\[Дано:3 < a < 4;\ - 5 < b < - 4.\]
\[- 1 < \frac{a}{b} < - 0,6\]
\[\ :\ \left| \begin{matrix} 3 < a < 4 \\ - 5 < b < - 4 \\ \end{matrix} \right.\ \]
\[\overline{\begin{matrix} \ \ - 0,6 > \frac{a}{b} > - 1 \\ - 1 < \frac{a}{b} < - 0,6\ \\ \end{matrix}}\]