解题方法
1 . (1)在复数范围内解关于
的方程:
;
(2)设
是虚数单位,求复数
为纯虚数的充要条件;
(3)在平行四边形ABCD中,点A,B,C分别对应复数
,求点
对应的复数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90620bf3fa40a5a0d684ff303cb8979b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c61aec19ff1181bcef9271f4458b9887.png)
(3)在平行四边形ABCD中,点A,B,C分别对应复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8376ebaf7efbc15dbdb5e196cc9cf221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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名校
2 . 已知
为虚数,且
为实数.
(1)求证:
;
(2)若
为纯虚数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ae50806d8c14f0275864b30e9f30a7.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70c2519610d6d1d6d0855b0f27dfc5e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecce6cb2b1ee01a28ebe39d65e21fd94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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解题方法
3 . 已知复数
,其中
.
(1)设
,若
是纯虚数,求实数
的值;
(2)设
,分别记复数
、
在复平面上对应的点为
、
,求
与
的夹角的余弦值以及
在
上的投影向量的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c0fda5d04e27796f64c5b3a09daa58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c24ecf9e59082e563372b12981d03fe.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489cf13d8699a2e17365cd320c03cfc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2f01a4884d79cb797b15232e044a89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ea3cc01ce7266cdf0fd73fd50d23c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
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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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5 . 已知复数
(
,
,且
),且
是实数.
(1)求
的值;
(2)求
的取值范围;
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea271449079f5c1599f6199c611e1995.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f447f2b9da66341b1acae748708788.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3882a83734b2a39d4e7a26a12d1d9c.png)
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解题方法
6 . 已知复数
,
满足
,
.
(1)若纯虚数
的虚部与
的虚部互为相反数,求
;
(2)求
的最小值.
![](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/39d4733d7f4dd93f60b1c2ea1f10375e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57086af4def74ae9931563b2212b26e3.png)
(1)若纯虚数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a67a742d2a43e907fb1c3a1bdf1d6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a67a742d2a43e907fb1c3a1bdf1d6a9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95054097445ae06b084beaad666bd2f8.png)
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7 . 设复数
,
.
(1)若
在复平面上所对应的点在第一象限,求a的取值范围;
(2)若
为纯虚数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b34b807d915915705a9f909c586b238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b3a979568fde5e110220f093b54d94.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5c4be0ef92a22d075eb93ae968f3a4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0015f860c7e606951bed1759e06cae00.png)
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名校
解题方法
8 . 已知复数
(
为虚数单位).
(1)求
;
(2)若
,其中
,求
的值;
(3)若
,且
是纯虚数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6275aab78ba9acf5242af47407f5bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/949640658f3eb28025dc5ead55bcdea8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c05c638fa6ec40017a00a29bcc8bad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f844a74a4a9a02d6360b6384ebc4eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1842a4178f1de5839194ff3134e13f2f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe3cb7e0694744d1e8a592592931642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26dd5edae8097274a8a4fd56bc1b4c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
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2024-06-18更新
|
282次组卷
|
2卷引用:湖北省云学名校新高考联盟2023-2024学年高一下学期5月联考数学试题
2024高一下·全国·专题练习
9 . 已知复数
,
,
.
(1)若
为实数,求
的值;
(2)设复数
在复平面内对应的向量分别是
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2e5eabc6f1a836db026ab78e4fd71c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed0e6475b373adeee38a6892fb78d05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42947a9ec7c9d436aad88d7ee568445a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe615164ed2995bdeea0f5b0ba94231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)设复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d860cb86e1467ac24010aecfc7a425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a76970598da2e8562f99251b100ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b986f54ac055bbe5ea946087182a4d98.png)
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解题方法
10 . 欧拉公式
(其中
为虚数单位)被誉为最美数学公式.依据欧拉公式,下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abfa007ea5744567c67bebd638bd5cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
A.复数![]() | B.![]() |
C.复数![]() ![]() | D.![]() ![]() |
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