题目内容
计算复数(1-i)2-
等于( )
| 4+2i |
| 1-2i |
| A.0 | B.2 | C.4i | D.-4i |
复数(1-i)2 -
=-2i-
=-2i-
=-4i,
故选:D.
| 4+2i |
| 1-2i |
| (4+2i)(1+2i) |
| (1-2i)(1+2i) |
| 10i |
| 5 |
故选:D.
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题目内容
| 4+2i |
| 1-2i |
| A.0 | B.2 | C.4i | D.-4i |
| 4+2i |
| 1-2i |
| (4+2i)(1+2i) |
| (1-2i)(1+2i) |
| 10i |
| 5 |