名校
1 . 已知复数
为虚数单位,其中
是实数.
(1)若
是实数,求
的值;
(2)若复数
在复平面内对应的点在第二象限,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3043295ad00a6df6e77eb7a21c88e189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96a1ec15680a35a56e15d8c582eb3ab3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . 已知复数
的共轭复数为
,则下列命题错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcfebd9f5a57036e6df6b6e14865da3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知复数
满足
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a1621cb90522c90545c3372fade212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe708b41ce87fc158edbb43135c14d3d.png)
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4卷引用:上海市 位育中学2023-2024学年高三下学期三模数学试题
上海市 位育中学2023-2024学年高三下学期三模数学试题湖北省武汉市2024届高三下学期5月模拟训练试题数学试卷浙江省杭州市西湖高级中学2024届高三下学期数学模拟预测数学试题(已下线)专题06 复数的9种常考题型归类 -《期末真题分类汇编》(北师大版(2019))
真题
4 . 已知虚数
,其实部为1,且
,则实数
为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a2f912dba0e17b3b87244e131e4b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
5 . 设复数
满足
(
为虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add02a80dba39a7cad7205520e0f5ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
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名校
6 . 已知方程
的一个根是
(
是虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce35bc1ff8d66689fced2348fcd1c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e466ba3748587c30f46d2f516589e388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
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名校
7 . 已知复数
,则
的值等于_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16852bb45d8c0ed0505f02e6841204c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cebcc45614dae664853e3e7a141c0a49.png)
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解题方法
8 . 复数
在复平面内对应的点位于第______ 象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69f5d05a2b9392eb8f928278d9eb2446.png)
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名校
9 . 复数
(
为虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9c3d509e77d6a7e4874302308c2aba.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeefdde19b27c562a7110fb0c3908061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9c3d509e77d6a7e4874302308c2aba.png)
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解题方法
10 . 已知a,
,
是虚数单位,
,
在复平面上对应的点分别A、B.
(1)若
是实数,求
的最小值;
(2)设O为坐标原点,记
,若
,且点C在y轴上,求
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f05683157eb845db949d888899d0f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c484d60171548d3b143f4d664b1c9c1c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf36d6c7ecd9fb710f8b7237c488471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d401876b078e318413b8ad876c54b7be.png)
(2)设O为坐标原点,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc170fc6c893de77fdbb1d5a9b34814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4876efa91f38d11ce12fed2e1fbf2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
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