Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex fifth roots of -2i
A. 
(cos 45° + i sin 45°), 
(cos 117° + i sin 117°), 
(cos 189° + i sin 189°), 
(cos 261° + i sin 261°), 
B. 32(cos 54° + i sin 54°), 32(cos 126° + i sin 126°), 32(cos 198° + i sin 198°), 32(cos 270° + i sin 270°), 
C. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
D. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
Answer: C
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? 
A. 
B. 
C. 
D. 
Fill in the blank with one of the words or phrases listed below. 
Two angles that have a sum of 90° are called 
angles.
A. supplementary B. acute C. straight D. complementary
Determine between which two consecutive whole numbers each square root lies.
A. 11 and 12 B. 14 and 15 C. 20 and 21 D. 15 and 16
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