§ Задание 1140
\[\boxed{\mathbf{1140\ (1132)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ a\ :b = 1\]
\[при\ a = b\]
\[2)\ a\ :b = - 1\]
\[при\ a = - b\]
\[3)\ a\ :b = 0\]
\[при\ a = 0;\ \ b \neq 0\]
\[\boxed{\mathbf{1140\ (1132)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ a\ :b = 1\]
\[при\ a = b\]
\[2)\ a\ :b = - 1\]
\[при\ a = - b\]
\[3)\ a\ :b = 0\]
\[при\ a = 0;\ \ b \neq 0\]