SOLUTION: Use DeMoivres's Theorem to find the three cube roots of -64i. Write your answers in both polar form and a+bi form. Answer: Polar Form: 4(cos90° + isin90°), 4(cos210° + isin210°

Algebra ->  Trigonometry-basics -> SOLUTION: Use DeMoivres's Theorem to find the three cube roots of -64i. Write your answers in both polar form and a+bi form. Answer: Polar Form: 4(cos90° + isin90°), 4(cos210° + isin210°      Log On


   



Question 1131259: Use DeMoivres's Theorem to find the three cube roots of -64i. Write your answers in both polar form and a+bi form.
Answer:
Polar Form: 4(cos90° + isin90°), 4(cos210° + isin210°), 4(cos330° + isin330°)
a+bi form: 0%2B4i, -2sqrt%283%29-2i, 2sqrt%283%29-2i

Answer by ikleyn(52824) About Me  (Show Source):
You can put this solution on YOUR website!
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Your answers are correct.