A. B. C. D.
A.
B.
C.
D.
It won't just hand you the answer — it asks where you're stuck.How the checker works
Worked solution
1. 展开两个复数的多项式乘积
2. 利用 $i^2 = -1$ 进行化简,写成复数的代数表示形式形式
将 代入上式得:
结合选项,正确答案为 A。
Answer
A
AI analysis — may contain mistakes.
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