\[\boxed{\text{210\ (210.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\left\{ \begin{matrix} x < 2 \\ x \leq a \\ \end{matrix} \right.\ \]
\[если\ a < 2,\ то\ x \leq a;\]
\[если\ a \geq 2,\ то\ x < 2,\ так\ как\]
\[\left\{ \begin{matrix} a \geq 2 \\ x \leq a \\ x < 2 \\ \end{matrix} \right.\ \]
\[\left\{ \begin{matrix} x \leq 2 \\ x < 2 \\ \end{matrix} \right.\ \]
\(\ \)