复数z=|(3-i)i|+i5(i为虚数单位),则复数z的共轭复数为(  )A.2-iB.2+iC.4-iD.4+

2025-05-07 17:24:17
推荐回答(1个)
回答1:

由z=|(

3
-i)i|+i5=
(
3
)2+(?1)2
+i4?i=2+i

得:
z
=2?i

故选:A.