2010013111

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2010013111
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Nájdite goniometrický tvar komplexného čísla \(z=\frac{\mathrm{i}^{12}+1} {\mathrm{i}^{11}+1} \).
\(\sqrt{2}\left (\cos \frac{\pi } {4} + \mathrm{i}\sin \frac{\pi } {4}\right )\)
\(\cos \frac{\pi } {2} + \mathrm{i}\sin \frac{\pi } {2}\)
\(\sqrt{2}\left (\cos \frac{5\pi } {4} + \mathrm{i}\sin \frac{5\pi } {4}\right )\)
\(\sqrt{2}\left (\cos \frac{3\pi } {4} + \mathrm{i}\sin \frac{3\pi } {4}\right )\)