题目内容
1.复数(A)
(B)
(C)
(D)![]()
A
解法一:原式=
=
=
=
=i.
解法二:原式=
=
=
=i.
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题目内容
1.复数(A)
(B)
(C)
(D)![]()
A
解法一:原式=
=
=
=
=i.
解法二:原式=
=
=
=i.