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已知复数z1=2+i.z2=1+i.则z1z2在平面内对应的点位于( )A.第一象限B.第
已知复数z1=2+i.z2=1+i.则z1z2在平面内对应的点位于( )A.第一象限B.第
发布时间:2021-02-20 12:10:19
已知复数z1=2+i,z2=1+i,则z1z2在平面内对应的点位于( )
A.第一象限
B.第二象限
C.第三象限
D.第四象限
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答案:
分析:
分子分母同乘以分母的共轭复数,化简复数可得对应的象限.
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