问题
选择题
复数z=
|
答案
z=
=(1-i)2 1+i
=1-2i+i2 1+i
=-2i 1+i
=-2i(1-i) (1+i)(1-i)
=-1-i.-2-2i 2
所以
=-1+i.. z
故选B.
复数z=
|
z=
=(1-i)2 1+i
=1-2i+i2 1+i
=-2i 1+i
=-2i(1-i) (1+i)(1-i)
=-1-i.-2-2i 2
所以
=-1+i.. z
故选B.