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December 21st, 2016, 01:40 PM   #1
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Help with complex number



how come e^-i*pi*10/3 and e^-i*pi*5/3 can change to ( 0.5 + i*root3/2) and (-0.5 + i*root 3/2)
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December 21st, 2016, 02:08 PM   #2
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That's because $e^{i\theta}=\cos(\theta)+i\,\sin(\theta)$.
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