TeX Quellcode:
\begin{array}{rcl}z_5 &=& \sqrt[3]{8}\left(\cos\left(\dfrac{0+2\cdot 5\cdot\pi}{3}\right)+i\sin\left(\dfrac{0+2\cdot 5\cdot\pi}{3}\right)\right) \\ \\ &=& 2\left(\cos\left(\dfrac{10\pi}{3}\right)+i\sin\left(\dfrac{10\pi}{3}\right)\right) \\ \\ &=& 2\left(\cos\left(\dfrac{4\pi}{3}\right)+i\sin\left(\dfrac{4\pi}{3}\right)\right) \\ \\ &=& z_2\end{array}