1 . 下列命题中∶①两个复数不能比较大小;②若
,则当且仅当
时,
为纯虚数;③
则
;④
;⑤若实数
与
对应,则实数集与纯虚数集一一对应;
其中正确命题的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4483da8f0bc56335c93ea550adff671c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6344ee7b4f8cb4ff22f195ac712c067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32d37e72181718279600fc43d5aa532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76d0a67f998539706f1141f31aef264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab22fba6653e2df998272e59339cf21.png)
其中正确命题的个数是( )
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
名校
解题方法
2 . 已知复数
,则复数
的虚部为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83e8da1262ec3aeb1c6355d5793dbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 已知复数
满足
,则
的虚部是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61aecccef0fd74a5fb5ed5d7f69b6df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
A.2 | B.-2 | C.-2i | D.2i |
您最近一年使用:0次
2020-01-21更新
|
384次组卷
|
5卷引用:山西省运城市2022届高三上学期入学摸底测试数学(理)试题