题目内容
已知复数
的虚部为m，则m3的值为______．
| 10-5i |
| 4+3i |
复数
=
=
=1-2i，它的虚部等于m=-2，
∴m3 =-8，
故答案为-8．
| 10-5i |
| 4+3i |
| (10-5i)(4-3i) |
| (4+3i)(4-3i) |
| 25-50i |
| 25 |
∴m3 =-8，
故答案为-8．
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题目内容
| 10-5i |
| 4+3i |
| 10-5i |
| 4+3i |
| (10-5i)(4-3i) |
| (4+3i)(4-3i) |
| 25-50i |
| 25 |