若
,其中
为虚数单位,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226461febf56bd11f536993addc2a4eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.-2 | B.-4 | C.4 | D.2 |
更新时间:2020-04-17 17:30:54
|
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单选题
|
较易
(0.85)
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解题方法
【推荐1】已知
,若
为纯虚数,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eebb66b9df14aa384af3ce2ba6c4308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882bff376e1d71865bd23b747ef78a66.png)
A.![]() | B.2 | C.1 | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知
,
为虚数单位,若复数
为纯虚数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ecf5ace86b83fed5de4a1840b8e66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.0 | B.1 | C.2 | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知
为虚数单位,复数
满足
,则
的共轭复数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2b3830e6152e2876dbe6bc834d81d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9c3d509e77d6a7e4874302308c2aba.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次