在复数范围内,验证
,
,1,2,…,
为方程
的n个根,并给出几何解释.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cdec4414bcc9ee58262f73eaec776f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aadf9ab510510120699c5eee39ab18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22bcff080e5e25a0e82802434e83171b.png)
20-21高一·全国·课后作业 查看更多[3]
更新时间:2021-11-12 18:44:42
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相似题推荐
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】设复数
,
(1)写出
的三角形式;
(2)复数
满足
,且
在复平面内对应的点在虚轴的负半轴上,
,求
的代数形式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727e57fe2d6605a7b6dd8d3b85085432.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
(2)复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bd60194534e5488f4a2fb2dd34d63d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f60301adfaa8fb75e8cf33dc854945cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4214bd7826b377d68a99c371c5028329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
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适中
(0.65)
名校
【推荐2】在复平面内,点A对应的复数是
,向量
绕着点O按逆时针方向旋转120°得到向量
.
(1)求点C对应的复数
;
(2)已知点B对应的复数z满足
,且
,求复数z.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff871ec0eb568ba9f2a0bb97525c00c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20ec3efaa6b6ff5769e8999df5714a9.png)
(1)求点C对应的复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcc78b50e4eb2ef6076b0ef4fab732d.png)
(2)已知点B对应的复数z满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138e8d88f7ca53fd4c0b7ffd6f98a969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e867235268c396488926a09ecedb1fec.png)
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【推荐1】如图,设复平面上的点
表示复数
,将点
绕原点
旋转90°得到的点
表示哪一个复数?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知复数
,
,求当
满足什么条件时,
(1)
在复平面内对应的点关于实轴对称;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a31860867877ef66cc9400395f710b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed2b24aa0e8512d20e405e9b24d0462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d860cb86e1467ac24010aecfc7a425.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b634c037614766cf1ca4ab6557f23771.png)
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