18/01/21 03:12:39.49 o/Xlu9i+.net
>>51
arg(a+bi)=arctan2(a,b)
arg((a+bi)^2)=arctan2(a^2-b^2,2ab)
arctan2(2√2-2,2-2√2)=-(1/4)π
arctan2(1,1-√2)=-(1/8)π
arg(a/b)=arga-argb=-(1/8)π-(1/4)π=-(3/8)π
arg((a/b)^8)=-3π
n=8
18/01/21 03:12:39.49 o/Xlu9i+.net
>>51
arg(a+bi)=arctan2(a,b)
arg((a+bi)^2)=arctan2(a^2-b^2,2ab)
arctan2(2√2-2,2-2√2)=-(1/4)π
arctan2(1,1-√2)=-(1/8)π
arg(a/b)=arga-argb=-(1/8)π-(1/4)π=-(3/8)π
arg((a/b)^8)=-3π
n=8