Question 205835

1. (-256)^1/4 
= [256^(1/4)cis[(180+360n)/4]
= 4cis45,4cis135,4cis225,4cis315
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2. 1^1/5 
= cis[(0+360n)/5]
= cis(0),cis(72),cis(144),cis(216),cis(288)
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3. i^1/4
= cis[(90+360n)/4]
=cis(12.5),cis(102.5),cis(192.5),cis(282.5)
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Cheers,
Stan H.