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If x^(8) + 1= 0, then X =...

If `x^(8) + 1= 0,` then X =

A

`cis [(2 k + 1)(pi)/(8)],K = 0,1,2,3,4,5,6,7`

B

`cis [(2k-1)(pi)/(8)],K = 0, 1,2,3,4,5,6,7`

C

`cis [(3k +1)(pi)/(8)],K = 0,1, 2,3,4 ,5,6,7`

D

`cis [ (3k - 1)(pi)/(8)], k = 0, 1,2,3,4,5,6,7`

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The correct Answer is:
A
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