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数学
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已知复数z=
2i
1+i
,则z的共轭复数
.
z
是( )
A. 1-i
B. 1+i
C. i
D. -i
人气:317 ℃ 时间:2020-03-28 21:50:39
解答
复数z=
2i
1+i
=
2i(1−i)
(1+i)(1−i)
=1+i
所以它的共轭复数为:1-i
故选A
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