SOLUTION: 4 root -64

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Question 344399: 4 root -64
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: root%284%2C-64%29=root%284%2C64%29%2Aroot%284%2Ci%29 where i=sqrt%28-1%29
root%284%2C-64%29=2%2Asqrt%282%29%2Aroot%284%2Ci%29
Use DeMoivre's theorem to get the 4th root of i.