名校
解题方法
1 . 已知复数
.
(1)若复数
为纯虚数,求
;
(2)若复数
在复平面内对应的点在第四象限,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4366fa9c602566f93056c558e06e7bcb.png)
(1)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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2 . 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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3 . 已知
,
,在复平面内,复数
,
,
对应的点分别为
,
,
.
(1)求
;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e8b708288bd3a38942055519a57708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845dbecf4d789a2d611a3c39d3fe5d9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34b88f343ca5a4c29057465541b9cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4e2b866b0043a32fc78326553841d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe615164ed2995bdeea0f5b0ba94231.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/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c231f5c0eddd418c1e36688321e39ab7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc0a1884c6669cec22b714a57d5b2b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
4 . 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
5 . 设复数
.
(1)若
是实数,求
;
(2)若
是实数,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c878acebd9267b451d0e01a6a915d356.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34b88f343ca5a4c29057465541b9cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe615164ed2995bdeea0f5b0ba94231.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8b3f66119c2ce542984d12eb2b6b77.png)
您最近一年使用:0次
名校
解题方法
6 . 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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7日内更新
|
257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
名校
7 . 已知
,
,
.
(1)若
,求
的值;
(2)若复数
在复平面内对应的点
满足关系式
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb18a468485cbe7848ccbf7fd9ee6e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2104fa97725f32e0c03f291a5fb8c14a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895e674e17021ffdea6dbd303aef34e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a40a402b8af0497a46bb4a2cbf24e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
7日内更新
|
213次组卷
|
2卷引用:山西省临汾市名校联考2023-2024学年高一下学期5月质量检测数学试题
名校
8 . (1)在复数范围内解方程:
;
(2)已知关于
的方程
,其中
为实数,若
(
是虚数单位)是该方程的根,求
与
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5241b112fbfbbe937d4f34f764510c94.png)
(2)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6cbf4c4e4fb18b5e45be298b58ec049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5726f5fc62391de15216189137c37fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
9 . 代数基本定理:任何一个
次复系数多项式方程
至少有一个复根.由此可得如下推论:
推论一:任何一元
次复系数多项式
在复数集中可以分解为
个一次因式的乘积;
推论二:一元
次多项式方程有
个复数根,最多有
个不同的根.即一元一次方程最多有1个实根,一元二次方程最多有2个实根等.
推论三:若一个
次方程有不少于
个不同的根,则必有各项的系数均为0.
已知
.请利用代数基本定理及其推论解决以下问题:
(1)求
的复根;
(2)若
,使得关于
的方程
至少有四个不同的实根,求
的值;
(3)若
的图像上有四个不同的点
,以此为顶点构成菱形
,设
,
,求代数式
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab009a153dfcc13ba9eb4916c76f8ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b7bff9b2431134f7683a9cc4e68acd.png)
推论一:任何一元
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab009a153dfcc13ba9eb4916c76f8ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
推论二:一元
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
推论三:若一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14c686bfce270ec65d068555d1866ff.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dadabea3f5008d97a32382752e62bdd8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec4e65c4c043edef8084b292675395c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcecb855c13987b207aec2db73c9ec5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc04eee630e386f7be4ac709ff4e16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df74fc4cedb204eb6dcce64b706e99c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0c942fae0e9dd2d219ad8269511898.png)
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2024高一下·全国·专题练习
10 . 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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