Find all specified roots.Fifth roots of 1.

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

Answer: A

Mathematics

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Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = i - 5j,w = -3i + j

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Mathematics