tomate[tex]x^{2} x^{2} x^{2} x^{2} x^{2} \neq \frac{x}{y} \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] x_{123} \alpha \beta \neq \lim_{n \to \infty} a_n[/tex]