[tex]\sqrt[n]{x} \sqrt[n]{x} \sqrt[n]{x} \sqrt[n]{x} \frac{x}{y} x_{123} \beta \alpha \pi \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] x^{2} \\ \geq \geq \int\limits^a_b {x} \, dx \sqrt{x} \neq \geq \geq \geq \neq \\[/tex] cum se fac copiii?