SOLUTION: Please help me solve this (16i)^0.25

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Question 899380: Please help me solve this (16i)^0.25
Found 2 solutions by Fombitz, Edwin McCravy:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Using DeMoivre's formula,
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
There are 4 answers.  The other tutor only gave one.
He used degrees, I'll use radians:





The modulus is 16 and the argument is 



Now we use DeMoivre's theorem:











Now use n=0,1,2,3 to get 4 answers:









Edwin
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