\[\boxed{\text{1091\ (1091).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ \left\{ \begin{matrix} x² + y² \leq 4 \\ |x| \geq 1\ \ \ \ \ \ \ \ \\ \end{matrix} \right.\ \]
\[\textbf{б)}\ \left\{ \begin{matrix} x² + y² \leq 9 \\ |y| \geq 2\ \ \ \ \ \ \ \ \ \\ \end{matrix} \right.\ \]