TeX Quellcode:

\vec{a} \times \vec{b} = \begin{pmatrix}\frac{4}{3} \cdot \left(-\frac{9}{2}\right) &-& (-12) \cdot \frac{5}{6} \cr -12 \cdot \left(-\frac{3}{4}\right) &-& 0 \cdot \left(-\frac{9}{2}\right) \cr 0 \cdot \frac{5}{6} &-& \frac{4}{3} \cdot \left(-\frac{3}{4}\right)\end{pmatrix} = \begin{pmatrix}4\cr9\cr1\end{pmatrix}