SOLUTION: What are all the complex fourth roots of -81?

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Question 1032054: What are all the complex fourth roots of -81?
Answer by Alan3354(69443) About Me  (Show Source):
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What are all the complex fourth roots of -81?
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-81 --> 81cis(180)
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4th roots: 3cis(45), 3cis(135), 3cis(225), 3cis(315)