TeX Quellcode:

\left(8 \, e^{i \, \frac{4\pi}{3}}\right)^2 \; = \; 8^2 \, e^{2 \cdot i \, \frac{4\pi}{3}} \; = \; 64 \, e^{i \, \frac{8\pi}{3}} \; = \; 64 \, e^{i \, \frac{2\pi}{3}}