https://img402.imageshack.us/img402/2489/matadszy.jpg https://img36.imageshack.us/img36/5268/matadsz1.jpg
[C-1] (2+i+2-i/2+i-2+i)⁴ =(4/2i)⁴ =(2/i)⁴ =16 [C-2] 2(x+yi)-6i=x-yi 2x+2yi-6i=x-yi 2x+i.(2y-6)=x-yi x=0, 2y-6=-y ise y=2 x+y=2
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