TeX Quellcode:

\dfrac{12}{5} \, e^{i \, \frac{3\pi}{10}} \cdot 15 e^{i \, \frac{5\pi}{12}} \; = \; \dfrac{12}{5} \cdot 15 \, e^{i \, \left(\frac{3\pi}{10}+\frac{5\pi}{12}\right)} \; = \; 36 e^{i \, \frac{43 \pi}{60}}