2024高一下·江苏·专题练习
1 . 把下列复数的三角形式化为代数形式:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6808d749830e6c5b049cfeecfaf10464.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee5a5653ff7614c738a49138b528f8aa.png)
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名校
解题方法
2 . 棣莫弗公式
(其中i为虚数单位)是由法国数学家棣莫弗(1667-1754)发现的,根据棣莫弗公式可知,复数
在复平面内所对应的点位于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342b5950d35e577c38b36fd19edb0605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7db420f28cdead7d1b69286c9ee2d4e.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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2024-03-19更新
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1461次组卷
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8卷引用:内蒙古赤峰市2024届高三下学期3·20模拟考试理科数学试题
内蒙古赤峰市2024届高三下学期3·20模拟考试理科数学试题内蒙古赤峰市2024届高三下学期3.20模拟考试文科数学试题江西八所重点中学2024届高三联考考后提升数学模拟训练一云南省红河哈尼族彝族自治州第一中学2023-2024学年高一下学期4月月考数学试题广东省深圳市南头中学2023-2024学年高一下学期期中考试数学试卷浙江省温州中学2023-2024学年高一下学期期中考试数学试题(已下线)10.3 复数的三角形式及其运算-【帮课堂】(人教B版2019必修第四册)(已下线)5.3复数的三角形式-【帮课堂】(北师大版2019必修第二册)
3 . 把下列复数的三角形式化为代数形式:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fae122329f3f35c43494b5eb39f559.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b703f5f64573eaba5d563c52074440.png)
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4 . 计算下列各式的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17658acb93cd3813115e85bd5096b08.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253985de05ee371343c0b2e39a8194f0.png)
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2024高一下·江苏·专题练习
5 . 化简下列各式:
(1)
;
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f0265cffab0060252aac73d6abb9021.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5a764c5866f81b4fe3ab3a15539802.png)
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2024高三·上海·专题练习
6 . 计算
的结果是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287c4730dae510197b2959666f683665.png)
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2024高三·全国·专题练习
7 . 一般地,任何一个复数
(
,
)都可以表示成
形式,其中
是复数
的模,
是以
轴的非负半轴为始边,向量
所在射线(射线
)为终边的角,叫做复数
的辐角,
叫做复数
的三角表示式,简称三角形式.为了与“三角形式”区分开来,
(
,
)叫做复数的代数表示式,简称“代数形式”. 已知
,
,
,其中
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e13b9c2f224325b25b10a9235bc8d2.png)
____________ .(结果表示代数形式)
![](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/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6b88af810dbab3e7a0e9baeafb15f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2065e8d7f0afb35f64ea5fbea3c400f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54d290009e138d1f0d4cb771cada9f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6b88af810dbab3e7a0e9baeafb15f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eed3d568acf369a315c7ab41c081049.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/156ca68a083a7bcd5f68def3a0c6819d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c0a7c890678066124a9e121b3c3ba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1c7ea09ace27da0f06903c7c0f333a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7784e6c622a939f2aaa0c02afd32ac8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c749c84d9f0a6b9f2c89f98c56ef256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e13b9c2f224325b25b10a9235bc8d2.png)
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8 .
,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7264502e03d841bf3580613457ea27ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11084f939da10441446da59d4f00c9e6.png)
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9 . 已知复数
,
满足
,
,且
,则( )
![](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/78f350fee2117b2a0c7716eec5610491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a4bed51d4197e5b08130ccc354b0139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c2c9655bc81d3cabafa2b01f61fda1.png)
A.![]() | B.![]() |
C.若![]() ![]() | D.![]() |
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2024-03-14更新
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883次组卷
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6卷引用:贵州省名校协作体2024届高三下学期联考(二)数学试题
贵州省名校协作体2024届高三下学期联考(二)数学试题(已下线)高一下学期期中数学试卷(提高篇)-举一反三系列(已下线)第七章 本章综合--方法提升应用【第三练】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)第12章 复数(提升卷)--学重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)第十章:复数章末重点题型复习(2)-同步精品课堂(人教B版2019必修第四册)(已下线)第七章 复数(提升卷)--重难点突破及混淆易错规避(人教A版2019必修第二册)
名校
解题方法
10 . 复数是由意大利米兰学者卡当在十六世纪首次引入,经过达朗贝尔、棣莫弗、欧拉、高斯等人的工作,此概念逐渐为数学家所接受.形如
的数称为复数,其中
称为实部,
称为虚部,i称为虚数单位,
.当
时,
为实数;当
且时,
为纯虚数.其中
,叫做复数
的模.设
,
,
,
,
,
,
如图,点
,复数
可用点
表示,这个建立了直角坐标系来表示复数的平面叫做复平面,
轴叫做实轴,
轴叫做虚轴.显然,实轴上的点都表示实数;除了原点外,虚轴上的点都表示纯虚数.按照这种表示方法,每一个复数,有复平面内唯一的一个点和它对应,反过来,复平面内的每一个点,有唯一的一个复数和它对应.一般地,任何一个复数
都可以表示成
的形式,即
,其中
为复数
的模,
叫做复数
的辐角,我们规定
范围内的辐角
的值为辐角的主值,记作
.
叫做复数
的三角形式.
,
,求
、
的三角形式;
(2)设复数
,
,其中
,求
;
(3)在
中,已知
、
、
为三个内角
的对应边.借助平面直角坐标系及阅读材料中所给复数相关内容,证明:
①
;
②
,
,
.
注意:使用复数以外的方法证明不给分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c0c72c17b74f9a5a175ec2b9d77e7.png)
![](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/c789a7cd7ac2b8b96dc879c6c8161ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fe68ea0bf368925909606949da47f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0bf9b2a7378e73e9fd06c693bfda07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368f9e12546277731776041c73dbe58c.png)
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e80e5baee553150c67a91f1017a7be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6958203312cbda12fd2683a819dd9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e472aea001d179c284e3687a9aacf384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e472aea001d179c284e3687a9aacf384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec45476379fb51aa1ef0a93f849f48be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e283f3168c0b5e8f68dda92c43651e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eec3e684af41f9ed4db5b931b9ccfb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f56cfb41ee7cb758fee138ab09e0d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec45476379fb51aa1ef0a93f849f48be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3665b2dac544bfb2a0c175f95a480e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b3a15906b84b98a3ac563e7e2ec9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe615164ed2995bdeea0f5b0ba94231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
(2)设复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd87d6e1987cf95d102de1045d3722a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398d8980d3ec9fbf536a1efa6312a19a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0492634f27279b6470798af0185be67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c723970ac738976e0130e1438b67058.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1501d4035822b34fcc2378f1e316f159.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63471f592531e46277365ed319e2acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923694c299d953e02cb79dfcef9f56a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ce2f54d69a5987c1de19da53342811.png)
注意:使用复数以外的方法证明不给分.
您最近一年使用:0次
2024-03-12更新
|
591次组卷
|
4卷引用:黑龙江省哈尔滨师范大学附属中学2023-2024学年高一下学期开学考试数学试卷
黑龙江省哈尔滨师范大学附属中学2023-2024学年高一下学期开学考试数学试卷重庆市缙云教育联盟2023-2024学年高一下学期3月月度质量检测数学试题(已下线)模块五 专题六 全真拔高模拟2(已下线)第七章:复数(新题型)-同步精品课堂(人教A版2019必修第二册)