题目内容
复数
=( )
| 4+3i |
| 2-i |
| A.1-2i | B.1+2i | C.-1+2i | D.-1-2i |
| 4+3i |
| 2-i |
| (4+3i)(2+i) |
| (2-i)(2+i) |
| 5+10i |
| 5 |
故选B.
练习册系列答案
相关题目
题目内容
| 4+3i |
| 2-i |
| A.1-2i | B.1+2i | C.-1+2i | D.-1-2i |
| 4+3i |
| 2-i |
| (4+3i)(2+i) |
| (2-i)(2+i) |
| 5+10i |
| 5 |