名校
1 . 已知
,
是复数,则下列正确结论的序号是______ .
①若
,则
; ②若
,则
;
③若
,则
; ④若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f177c6cca5fb7ed9c771ff15536cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714274d984c3194fc3bb949f0a16d7cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4499642b5a23d766dbd3f7146039c568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5bc8b000382c361d436db319243715b.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fbfb5c6ca0e87e72f3fcec6202eb2de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54521b0b406462d426781ccdd5b8efc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fbfb5c6ca0e87e72f3fcec6202eb2de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae527610c6b137cd499d78b657eac5f.png)
您最近一年使用:0次
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2 . 下列关于复数的命题,是真命题的是______ .(填序号)
①
;②若
,则
;
③若
,则
是纯虚数;④对任意实数
,都有
是虚数.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40cf8a903a0b778c83047c6ed0ee29e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70c2519610d6d1d6d0855b0f27dfc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ec0a4dcfaefaa1a22c9dd79e15145d.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ea094e511400e3c48f103fb958ca60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6885bb2167fda6107fd05c94a2c52bf6.png)
您最近一年使用:0次
3 . 已知复数
(i为虚数单位)的共轭复数为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300154cf9682c78145a55fca2bfbb378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8bfeaced63e8631b026a02da499ea8a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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4 . 若复数
,
,则
的共轭复数的虚部为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64769ac22d306921778df8ee37a0fcf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ba45f70f348a84466ffde581421d48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d865d61a81252faacbcf1d3e6e0e3d07.png)
您最近一年使用:0次
2022-09-11更新
|
340次组卷
|
3卷引用:陕西省西安市第三中学2022-2023学年高二上学期10月月考数学试题
名校
5 . 已知复数
,则
在复平面内所对应的点位于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1391047415f9dab494911cf1dcabacf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcfebd9f5a57036e6df6b6e14865da3.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
您最近一年使用:0次
2022-07-30更新
|
400次组卷
|
4卷引用:陕西省西安市蓝田县2021-2022学年高二下学期期末理科数学试题
6 . 已知复数
满足
,其中
为虚数单位,则
的共轭复数
的虚部为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94533c14474c7ac489dbc41f915947ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-26更新
|
335次组卷
|
2卷引用:陕西省宝鸡市渭滨区2021-2022学年高二下学期期末理科数学试题
解题方法
7 . 设复数
,
,其中
.
(1)若复数
为纯虚数,求
的值;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef015c99536d13f1386bbb9a1dcaecea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a91698de7bf67445e97906be340f142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b5b9af2c3d4abeba615fe01211c6150.png)
(1)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1c0cc2645a305791555f32b04692d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e133ed897e13d48ae11c4719297907f.png)
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8 . 已知复数z的实部为1,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aadd186778c8e27e3f36e5f738ab775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-24更新
|
1840次组卷
|
5卷引用:陕西省汉中市2021-2022学年高二下学期期末校际联考文科数学试题
陕西省汉中市2021-2022学年高二下学期期末校际联考文科数学试题陕西省渭南市蒲城县2021-2022学年高二下学期对抗赛文科数学试题(已下线)第02讲 复数(练)(已下线)专题53 复数-2(已下线)专题2 复数与平面向量
名校
解题方法
9 . 已知复数
(
是虚数单位),则共轭复数
在复平面内对应的点位于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe0e0f81146ffd424025c4f0b46837f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcfebd9f5a57036e6df6b6e14865da3.png)
A.第一象限 | B.第二象限 |
C.第三象限 | D.第四象限 |
您最近一年使用:0次
2022-12-08更新
|
220次组卷
|
3卷引用:陕西省榆林市横山中学2021-2022学年高二上学期期末文科数学试题
10 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6772ec3566a782d48fa5b22ccd1de48c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d7c1ea926aecda28b226961e06299f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次