User talk:Nil Einne/Sandbox

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\begin{align} & \sqrt{x^{2}+y^{-2}} \\ & \underset{x\to \infty }{\mathop{\lim }}\, \\ & \sqrt{b^{2}-4ac} \\ & \frac{-b\pm \sqrt{b^{2}-4ac}}{2a}\otimes \oplus \mathfrak{M}\mathbb{S}\frac{n!}{r!\left( n-r \right)!} \\ \end{align}