We complete everything as follows [tex] \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \left \{ {{y=2} \atop {x=2}} \right. [/tex]
[tex] x_{123} \neq \int\limits^a_b {x} \, dx \leq \int\limits^a_b {x} \, dx [/tex]
