x^2+xy+y^2=0,两边除以y^2得,(x/y)^2+x/y+1=0,根据求根公式得,x/y=(-1+√3i)/2,或x/y=(-1-√3i)/2,当x/y=(-1+√3i)/2时,x/(x+y)=1-y/(x+y)=1-1/(x/y+1)=(1+√3i)/2,y/(x+y)=(1-√3i)/2,当x/y=(...
设非零复数x,y满足x^2+xy+y^2=0.则代数式[x/(x+y)]^2010-[y/(x+y)]^2010=?
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