设i是虚数单位,则i/1−i3=_.
问题描述:
设i是虚数单位,则
=______. i 1−i3
答
=i 1−i3
=i 1+i
=i(1−i) (1+i)(1−i)
=1+i 2
+1 2
i1 2
故答案为:
+1 2
i1 2