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1 . 下列命题错误的是( )
A.复数不能比较大小 |
B.![]() ![]() |
C.若实数a,b互为相反数,则![]() |
D.若复数![]() ![]() ![]() |
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2023-05-03更新
|
360次组卷
|
3卷引用:湖南省多校2022-2023学年高一下学期期中联考数学试题
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解题方法
2 . 在复平面内,
为原点,向量
,对应复数为
,将
绕
点沿逆时针方向旋转
,且将向量
的模变为原来的
倍,得向量
,此时向量
对应的复数为
.现有一平行四边形
,如图,
,
,
,
,则
点直角坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84dac41f87e939f6cc39f38dc59b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008d7022c9ee5342f8ad9a5c567c523f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75578eb4a8555e6cfb6d743a509a612f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75578eb4a8555e6cfb6d743a509a612f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74457b41ce1dee46d5668bea18ab1a6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e5eea5f7f98ca8632358b7e49ceb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1702ac3cbbc672f665735d7c665d522c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ce06dbe9e1177468781ba4aff85ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2023/4/20/3220516418437120/3221322403823616/STEM/b96c5b30a99643e2bbd1c3a96f24a82e.png?resizew=147)
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3 . 下列关于复数的命题是真命题的是( )
A.![]() |
B.若![]() ![]() |
C.若![]() |
D.对任意实数![]() ![]() |
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4 . (1)在复数范围内,求方程
的解;
(2)若复数
,
满足
,且
,求出
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31aca02c600bed88685f307fc039421d.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2cb7ff1814df79e7b92e44cbe627c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da156cf6e84310ca166ed8dcf3d676c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
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5 . 在复平面内,复数
(i是虚数单位,
)是实数,其对应的点为
为曲线
上的动点,则
与
之间的最大距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2012a3d091c1e4e8eefb319ea114c26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1090ad8893be65df8ad18b7025402fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b3a21fc333f0c9e05b746815af6b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
A.4 | B.![]() | C.![]() | D.2 |
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