SOLUTION: in the context of complex numbers: trigonometric notation what is the fifth roots of -1? can you help me to solve this

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Question 805451: in the context of complex numbers: trigonometric notation
what is the fifth roots of -1?
can you help me to solve this
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
what is [sic] the fifth roots of -1?
can you help me to solve this
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What are... there are 5 of them.
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-1 = 1cis(180 + n*360), n = 0,1,2,3...
root%285%2C-1%29+=+1cis%2872%29+=+cos%2872%29+%2B+isin%2872%29
root%285%2C-1%29+=+1cis%28108%29
root%285%2C-1%29+=+1cis%28144%29
root%285%2C-1%29+=+1cis%28180%29 = -1
root%285%2C-1%29+=+1cis%28216%29