công thức toán

\[ \left [ - \frac{\hbar^2}{2 m} \frac{\partial^2}{\partial x^2} + V \right ] \Psi = i \hbar \frac{\partial}{\partial t} \Psi \] \[\sqrt {{a^2} + {b^2}} \mathop {\lim }\limits_{x \to \infty } \sqrt {{b^2} - 4ac} \frac{{ - b \pm \sqrt {{b^2} - 4ac} }}{{2a}}\] Địa chỉ bài viết: http://www.traidatmui.com/2013/05/thu-thuat-trinh-bay-cong-thuc-toan-hoc-trong-blogspot-voi-mathjax.html#ixzz2UaxVE7nw Nguồn: TRAIDATMUI.com