i2+i3+i4对应的点在( )A.实轴上 B.虚轴上C.第一象限D.第三象限

i2+i3+i4对应的点在(  )

A.实轴上        

B.虚轴上

C.第一象限

D.第三象限

答案

解析:

∵i2+i3+i4=-1-i+1=-i,∴B正确.

答案:

B

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