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3、+iy;(2)n/ª:z=r(cos+isin);(3)•ê/ª:z=rei.2.Eê$Ž:(1)¢Ü:Rez=x=rcos;(2)JÜ:Imz=y=rsin;p(3):jzj=a2+b2=r;(4)ÌË:argz=+2n02( ;],(À·ên0,¦+2n02y( ;]ž,=•ÌË),÷vtanargz=tan=.xy5:Ï•argz2( ;],arctan2( ;].¤±I‡ŠâxÚyÎx22yÒäEêéA:¤3–•,2(½argz†arctan'X,=3-1
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9、)ù‡´)Û¿©^‡, ¡qy²§•´7‡^‡,·‚†P•¿‡^‡=Œ;(2)duEмê3ٽ•SÑ´)Û,¤±y²ž,•‡¦ÑÙê,=Œ•§‚3=«•S´ëY,, 2yC-R•§,ÒU)Û:½«•.341Ù)Û¼ê¼ê)Ûž,Ùê0f(z)=ux+iv