{array}{ccc}1& 2& 3\\4& 5& 6\\7& 8& 9\end{array}\right]\alpha \left \{ {{y=2} \atop {x=2}} \right. \left \{ {{y=2} \atop {x=2}} \right. \left[\begin{array}{ccc}1& 2& 3\\4& 5& 6\\7& 8& 9\end{array}\right] \lim_{n \to \infty} a_n \\ \\ x^{2} \sqrt{x} \frac{x}{y}[/tex]