2000002102

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Project ID: 
2000002102
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0
Clonable: 
0
Easy: 
1
Considera \( z= \cos{\frac{\pi}{4}} + i\sin{\frac{\pi}{4}} \) y calcula \(z^9\).
\( \cos{\frac{\pi}{4}} + i\sin{\frac{\pi}{4}} \)
\( 9 \left(\cos{\frac{\pi}{4}} + i\sin{\frac{\pi}{4}}\right) \)
\( \cos{\frac{9\pi}{4}} - i\sin{\frac{9\pi}{4}} \)
\( 9\left(\frac{\sqrt{2}}{2} + i\frac{\sqrt{2}}{2} \right) \)