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Klio2033 [76]
3 years ago
10

Complex roots. Please help!

Mathematics
1 answer:
Tems11 [23]3 years ago
6 0

Using DeMoivre's theorem, and the fact that any root in the first quadrant has argument between 0^\circ and 90^\circ, we get

16i=16\left(\cos90^\circ+i\sin90^\circ)\implies\sqrt{16i}=\sqrt{16}\left(\cos45^\circ+i\sin45^\circ\right)

so the missing value is 45.

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