题目内容
复数Z=
的实部是( )
| 1-3i |
| 1+i |
| A.2 | B.-1 | C.1 | D.-4 |
∵Z=
=
=
=-1-2i
∴复数的实部是-1,
故选B.
| 1-3i |
| 1+i |
| (1-3i)(1-i) |
| (1+i)(1-i) |
| -2-4i |
| 2 |
∴复数的实部是-1,
故选B.
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题目内容
| 1-3i |
| 1+i |
| A.2 | B.-1 | C.1 | D.-4 |
| 1-3i |
| 1+i |
| (1-3i)(1-i) |
| (1+i)(1-i) |
| -2-4i |
| 2 |