≅α∴∴∞∞∞∞∞³³³[tex]\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] x_{123} x_{123} x_{123} x^{2} \geq \sqrt[n]{x} \frac{x}{y} \pi \lim_{n \to[/tex]