题目内容
计算
的结果是______.
| (2+i)2 |
| 4-3i |
∵
=
=
=
=i
故答案为:i
| (2+i)2 |
| 4-3i |
| 3+4i |
| 4-3i |
| (3+4i)(4+3i) |
| (4-3i)(4+3i) |
| 25i |
| 25 |
故答案为:i
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题目内容
| (2+i)2 |
| 4-3i |
| (2+i)2 |
| 4-3i |
| 3+4i |
| 4-3i |
| (3+4i)(4+3i) |
| (4-3i)(4+3i) |
| 25i |
| 25 |