复数z=11+i(其中i为虚数单位),.z为z的共轭复数,则下列结论正确的是(  )

2025-06-23 01:32:21
推荐回答(1个)
回答1:

∵z=

1
1+i
=
1?i
(1+i)(1?i)
=
1?i
2
1
2
?
1
2
i

z
=
1
2
+
1
2
i

故选:A.