1 . 已知复数
满足
,
的虚部为2,
在复平面上所对应的点
在第一象限.
(1)求
;
(2)若
,
在复平面上的对应点分别为
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f32c241a1b97713333e7e8f0962503f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ea3cc01ce7266cdf0fd73fd50d23c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ea3cc01ce7266cdf0fd73fd50d23c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd734caf3253274b76d59f6359bc51e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40bcf5c0ccfc3f1a40c4430246edf4c8.png)
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2 . 已知复数
(
为虚数单位),则复数
的虚部是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e732d0b0ea826f484b95364b4d61a2d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79e3e03e4f379a86fe1d00f74dececea.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知
(
为实数)为纯虚数,则
的虚部为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d17decea6aec9b36bb3a684c1200642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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解题方法
4 . 已知集合
(其中
是虚数单位)
,定义:
,
.
(1)计算
的值;
(2)记
,若
,且满足
,求
的最大值,并写出一组符合题意的
、
;
(3)若
,且满足
,
,记
,求证:当
时,函数
必存在唯一的零点
,且当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531f55c9de4647282bc0424a81f4fd25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ddb621d78a738eba6ebafecbbd7d06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47aa3fcf666d1169ceca5e1e720b926e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccc73232efc9d641adcbae21035944.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0ff8b406a295a58f4fbb36b4c292fa.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be674fcbd2fd1a608fd4a9705c70db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20e7c6170cd75c5a40d7e695eda15e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e95d018246b699601d127e79ec46131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f82089a3186fdffaa2535faebd3d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b54286fe72b8305272c36c0a3a8d2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f7d480cfc89b872404666083e62db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546ababc482b51df95c4aba05ee18c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d828db2a08e2a1da164a0012cc6627a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661249bf6499017f9e5e03db3fcd93d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d5ec74c81f7d02f273f7eecefaf9a7.png)
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解题方法
5 . 如果两个复数的实部互为相反数,虚部相等,那么这两个复数互为“共胚复数”.已知
与
互为“共胚复数”,其中
,
,
为虚数单位,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8acd519003e30c20b97fdb432c27530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa08d3f20a0199077bacb1bbf680473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/726c078ca626f64e0d02c2666d8af105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.0 | C.3 | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 已知复数
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ea9f754a0d772bd71efe93b980b5c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab15cfa691e78c4caf7d23046df9eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92373813bbe827e565666b72d3d1468.png)
A.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.![]() |
D.![]() |
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7 . 复数
的虚部为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ef47e3dc605680728c0eba68a78b6.png)
A.1 | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
7日内更新
|
407次组卷
|
3卷引用:吉林省部分名校2023-2024学年高一下学期联合考试数学试题
吉林省部分名校2023-2024学年高一下学期联合考试数学试题(已下线)【高一模块一】难度4 小题强化限时晋级练 (中等1)山东省泰安市新泰市第一中学老校区(新泰中学)2023-2024学年高一下学期第二次月考数学试题
名校
8 . 复数
(
为虚数单位)的虚部是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbdba7875a9695113b8133b47160c18a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
7日内更新
|
178次组卷
|
2卷引用:海南省2023-2024学年高一下学期期末考试数学试题
9 . 复数
的虚部是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8afcbe6f0d2119d0f5e64e478b29f15.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 欧拉公式
(其中
为虚数单位,
)是由18世纪瑞士著名数学家欧拉创立的,它把自然对数的底数
、虚数单位
、三角函数联系在一起,充分体现了数学的和谐美.已知实数指数幂的运算性质同样也适用于复数指数幂,根据欧拉公式,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abfa007ea5744567c67bebd638bd5cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
A.![]() |
B.对任意![]() ![]() ![]() |
C.对任意![]() ![]() |
D.复数![]() ![]() |
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