(1+3i)3=()A.-8B.8C.-8iD.8i-数学

题目简介

(1+3i)3=()A.-8B.8C.-8iD.8i-数学

题目详情

(1+
3
i)3
=(  )
A.-8B.8C.-8iD.8i
题型:单选题难度:中档来源:不详

答案

(1+
3
i)
3
=
-8(1+
3
i)
3
-8
=-8(-class="stub"1
2
-
3
i
2
)
3
=-8

故选A.

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