名校
1 .
是虚数单位,复数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16c316af2ceb11836ed7a5ebbd55f59.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
真题
2 . 已知
是虚数单位,复数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c56619f94033af480e83c302defca66.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c56619f94033af480e83c302defca66.png)
您最近一年使用:0次
2024-06-10更新
|
2152次组卷
|
4卷引用:2024年天津高考数学真题
3 . 已知
是关于
的实系数方程
的两个虚根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857b75e47987bdbb91104c01a164ad00.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ce5f1be547bd7e6852875d3aa4ad77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857b75e47987bdbb91104c01a164ad00.png)
您最近一年使用:0次
2024-06-08更新
|
315次组卷
|
2卷引用:天津市河西区2023-2024学年高一下学期期中考试数学试题
4 . 已知
是虚数单位,复数
的虚部为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdaeeddc34a50f78af2cb866914788c.png)
您最近一年使用:0次
2024-06-03更新
|
320次组卷
|
2卷引用:天津市河西区2023-2024学年高一下学期期中考试数学试题
名校
解题方法
5 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912368f9fd10f4504a4b27e8e6dd60d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
名校
6 . 已知
(
是虚数单位),则复数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16fc8bfe8c333b06a502033ca1f5bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
您最近一年使用:0次
7 . 已知
是虚数单位,则复数
的共轭复数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1dfd2f0ab9a2f955fd67e196355541.png)
您最近一年使用:0次
名校
解题方法
8 . 以下4个命题,其中正确的命题的个数为( )
(1)在复平面内,虚轴上的点所对应的复数都是纯虚数;
(2)在
中,角
所对的边分别是
,则
是
的充分必要条件;
(3)已知向量
,若
,
,则
;
(4)在平面内,
三点在同一条直线上,点
是平面内一点,若
,则
.
(1)在复平面内,虚轴上的点所对应的复数都是纯虚数;
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
(3)已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5548846d7bc575235c60cd49b3cc7743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82fc5e3b3e4a43f05fe43be51a2a1163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afa49dbaa99a0d7a7a6d18b3fe42091.png)
(4)在平面内,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb36fd05e54761ed9f7f54460f238a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6096acdd2d0ce16e1e45397ec5e365d4.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
名校
9 . 若
,则
的共轭复数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620464bb6741e4af4f6a3938d8cdfc60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
您最近一年使用:0次
名校
10 . 已知复数
与
都是纯虚数,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8225711f173338e733e8e935f02d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次