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Old 25th August 2014, 08:27 AM   #1 (permalink)
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Complex Numbers help

Err can someone give me the worked solutions and find the roots of [(z+1)/(z-1)]^7 = -1 and [(z-4i)/(2i)]^3 = i
Really stuck and sorry I had to type that out because I can't seem to attach pictures

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Old 1st September 2014, 12:53 AM   #2 (permalink)
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Re: Complex Numbers help

i'll do the easier 1 [(z-4i)/(2i)]^3 = i. or:


No see that:


So as: for integers n.
So;


So we need to only consider n=0,+1,-1 (why?)
Hence;


Thats not the final answer but i think you can figure the result out by yourself.

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