i为虚数单位,则(1+i1?i)2012=(  )A.-iB.1C.iD.-

i为虚数单位,则(1+i1?i)2012=(  )A.-iB.1C.iD.-1
2025-06-26 14:31:50
推荐回答(1个)
回答1:

1+i
1?i
=
(1+i)2
(1+i)(1?i)
=
1+2i+i2
1?i2
=
2i
2
=i
∴i2012=(i21006=1
故选B