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\end{align*}  Thus,  \begin{align*}  z=\sqrt[n]{z^{n}}=\sqrt[n]{r}e^{i(\frac{\theta+2\pi m}{n})} z=\sqrt[n]{z^{n}}=\sqrt[n]{r}e^{(\frac{i(\theta+2\pi m)}{n})}  \end{align*}  \end{solution}  \end{document}