Find all specified roots.Seventh roots of 1.

A. 1, cis , cis , cis , cis , cis , cis 
B. -1, cis , cis , cis , cis , cis , cis 
C. 1, cis , cis , cis , cis , cis , cis 
D. 1, cis , cis , cis , cis , cis , cis , -1

Answer: C

Mathematics

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A. -  m/sec2
B. -  m/sec2
C.  m/sec2
D.  m/sec2

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Find all complex solutions.x4 - 49 = 0

A.
B. ± , ± i
C. , i
D. ± 

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What will be an ideal response?

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