名校
解题方法
1 . 对于任意的复数
,定义运算
为
.
(1)设集合
{
均为整数},用列举法写出集合
;
(2)若
,
为纯虚数,求
的最小值;
(3)问:直线
上是否存在横坐标、纵坐标都为整数的点,使该点
对应的复数
经运算
后,
对应的点也在直线
上?若存在,求出所有的点;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e5364f380434318a446d538b2233f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c827a9d087db395949f27f5c0f0ac01.png)
(1)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe9ef1768a3d5455d8777bcd3a5552a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a94d530869c1ec1e4faddc05438bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86202ddf220de1d8f5dc2c72cbe5b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c042c0c7e253a65f770583c5c6696770.png)
(3)问:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0771ce92ac12d359cc8a83ccb1d3c590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb77d49f9e0b0d2e01c2258f493b3270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86202ddf220de1d8f5dc2c72cbe5b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
您最近一年使用:0次
2020-06-25更新
|
692次组卷
|
2卷引用:上海市七宝中学2021-2022学年高一下学期期末数学试题
2021高一·江苏·专题练习
解题方法
2 . 已知复数
,
,其中
为虚数单位,
.
(1)当
、
是实系数一元二次方程
的两个虚根时,求
、
的值.
(2)求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb9178e08aadfd4c0bf08ef1740a6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68f55c664fbc096271352f6b2f436a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e36c9c91220b0f2cbd4a48e8fa90e3d.png)
(1)当
![](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/f43e49552a5099a8b2a442247c65a243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf1a32c60aa53cf19bead1d80bc8311.png)
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2021-06-12更新
|
438次组卷
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8卷引用:上海市闵行区(闵行中学、文绮中学)2020-2021学年高一下学期期末联考数学试题
上海市闵行区(闵行中学、文绮中学)2020-2021学年高一下学期期末联考数学试题(已下线)12.3 复数的几何意义-2020-2021学年高一数学同步课堂帮帮帮(苏教版2019必修第二册)上海市杨浦区上海理工大学附属中学2021-2022学年高一下学期期末数学试题(已下线)模块三 专题5 大题分类练(复数)拔高能力练(人教A)(已下线)模块三 专题6(复数)拔高能力练(北师大版)上海市华东师范大学周浦中学2022-2023学年高一下学期期末数学试题(已下线)核心考点02复数(1)(已下线)专题02 复数-《期末真题分类汇编》(新高考专用)
3 . 已知
,
.请选择适当的方法证明.
(1)若
,证明:
;
(2)若
,证明:
与
不能同时成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98941347dd7ac01f5e63a6c5930dd5fa.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca27cc54ca0332245f5167488daa3408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656cacf9b32ce8f718dcb50bc8994593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f678dde8a2f44b8eae985b11bf4b50.png)
您最近一年使用:0次
2022-05-05更新
|
286次组卷
|
3卷引用:上海市七宝中学2022-2023学年高一上学期10月月考数学试题
上海市七宝中学2022-2023学年高一上学期10月月考数学试题(已下线)专题04常用逻辑用语-【倍速学习法】(沪教版2020必修第一册)河南省商丘市商丘名校2021-2022学年高二下学期期中联考数学理科试题
名校
解题方法
4 . (1)已知实数
,
满足
,求证:
.
(2)若实数
,
为正数,且满足
,用反证法证明:
和
中至少有一个成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838b9f49811c77cbf7d12d3af4a63373.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba1d7973f41f2050afd1759a0e480e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfd31530f4f4d297248c3e39f42d8fb.png)
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解题方法
5 . 欧拉公式
将自然对数的底数
,虚数单位
,三角函数
联系在一起,充分体现了数学的和谐美,被誉为“数学的天桥”,已知复数
满足
,
.
(1)求
,
;
(2)若复数
是纯虚数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83fbbc5fbdc4887691d675a14691fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0436ff4c817f257ea0b8a9e25854860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b115a0e0342044fc8987c39d15915a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be674fcbd2fd1a608fd4a9705c70db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5b0f762fb1ebfaf4cc2cbe0051e0c4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c64b75adfa934653fb3447a898f3fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7359cd5390b336e0edd0be8af93b4ec9.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
6 . 已知
为实数,若复数
是纯虚数,则z的虚部为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4365c6ff84583388ba1ee71fb6b118b3.png)
您最近一年使用:0次
名校
7 . 已知复数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45e792026efe99af7a4bdb828b6b9d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0aeeb125cfb42e33094594d4381f5.png)
您最近一年使用:0次
2021-08-07更新
|
405次组卷
|
2卷引用:上海市闵行区(闵行中学、文绮中学)2020-2021学年高一下学期期末联考数学试题
名校
8 . 用反证法证明“
,若
,则
”时,应先假设__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32378da61ce0df3dd46ccc77e906009e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
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2023-10-11更新
|
121次组卷
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3卷引用:上海师范大学附属中学闵行分校2023-2024学年高一上学期期中数学试题
13-14高一·全国·课后作业
名校
9 . 用反证法证明命题:“已知
,
,若
不能被5整除,则
与
都不能被5整除”时,假设的内容应为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94028d5cf746093baffe4b1b3cf513e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2021-08-30更新
|
331次组卷
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13卷引用:上海市闵行区2020-2021学年高一上学期期末数学试题
上海市闵行区2020-2021学年高一上学期期末数学试题(已下线)2014年北师大版选修1-2 3.4反证法练习卷(已下线)第01讲 集合与逻辑-【提高班精讲课】2021-2022学年高一数学重点专题18讲(沪教版2020必修第一册,上海专用)(已下线)1.2反证法(第3课时)(已下线)第04讲 常用逻辑用语(3大考点)(2)上海市嘉定区第一中学2021-2022学年高一上学期期中数学试题上海市南汇中学2022-2023学年高一上学期期末数学试题(已下线)期末真题必刷常考60题(22个考点专练)-【满分全攻略】(沪教版2020必修第一册)2014-2015学年江西省白鹭洲中学高二下学期第一次月考文科数学试卷河南省郑州市第一中学网校2016-2017学年高二下学期期中联考数学(文)试题广西玉林市2020-2021学年高二下学期期末数学(文)试题陕西省延安市子长市中学2020-2021学年高二下学期期中文科数学试题陕西省咸阳市泾阳县2020-2021学年高二下学期期中文科数学试题
10 . 若复数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36024e5403c79c994996bc92b90d74f0.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65397720477637b744fd392fa5c2fb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36024e5403c79c994996bc92b90d74f0.png)
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