TeX Quellcode:

\begin{array}{rcl}\left|\begin{pmatrix}\sqrt{25}\cr x^3 \cr-\frac{1}{2}\end{pmatrix}\right| &=& \sqrt{\left(\sqrt{25}\right)^2+\left(x^3\right)^2+\left(-\dfrac{1}{2}\right)^2} \cr &=& \sqrt{x^6+\dfrac{101}{4}} \end{array}