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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A. 25 × 7 B. 72  C. 52 × 7 D. 25 × 5

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Find the volume.Find the volume of the sphere. Use 3.14 for ? and round to the nearest thousandth, if necessary.

A. 63.585 m3  B. 904.32 m3 C. 37.68 m3  D. 113.04 m3 

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Simplify. Write your answer in the form a + bi, where a and b are real numbers.(5 - 5i) + (4 - 3i)

A. -9 - 8i B. 9 - 8i C. 9 - 2i D. 9 + 8i

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Find the real solutions of the equation. +  = 3

A. {4}
B.
C. {1}
D. no real solution

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