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1 . 已知复数
、
对应的向量为
.
(1)若向量
,且
,
.求
对应的复数
;
(2)容易证明:
,类比到对应的向量,请写出类似的结论,并加以证明;
(3)设
,求
的值.
![](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/1a5cdedb6f4384fda29fb4508ba6fcc5.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c931438cd1de4180c622d66aee1de431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbf8cf890e1bab18f37152ef5da7dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c97d2a35ee85fa0b51eeaeb1ce1f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4302196fdb56536ddc2f2a3c2e9073e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
(2)容易证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8c8b8610bef469c87bb73919310477.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e294bd40af7a49ac1fadca723499c229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
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3卷引用:上海市曹杨第二中学2020-2021学年高一下学期5月月考数学试题
上海市曹杨第二中学2020-2021学年高一下学期5月月考数学试题(已下线)专题7.7 复数的运算大题专项训练(30道)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)高一复数重难点提高卷-【同步题型讲义】
2 . 已知
R,复数
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526c6e33166cdaadce9d0226b67642c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362a7f65ffcea2c959ea758f2765fec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4f66d2e18d0c227f42d49d4238837f.png)
A.![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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3卷引用:江苏省南京市第一中学2022届高三上学期10月阶段性检测(三)数学试题
3 . 在复平面内,若向量
对应的复数是1,将向量
绕O点逆时针旋转
得到向量
,则向量
对应的复数是
.由类比推理得:若向量
对应的复数是
,将向量
绕O点逆时针旋转
得到向量
,则向量
对应的复数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b0ab2519d0fb666743993961daee47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b0ab2519d0fb666743993961daee47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61329657aa12a3b1b4f9bb09cb7f6860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828c23f68b6fc90f705a9d691bcfab35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
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解题方法
4 . 已知复数
在复平面内对应的点分别为
,
,
为坐标原点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d860cb86e1467ac24010aecfc7a425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb8477bcc87b1401970171bf57b9ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c1fd680a5d355178273c6d6025eb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.满足![]() ![]() |
D.满足![]() ![]() |
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3卷引用:广东省2022届高三上学期一轮复习联考(四)数学试题
名校
5 . 给出下列命题:①如果复数
满足
,则复数
在复平面的对应点的轨迹是椭圆.②函数
的图像关于原点对称.③若对任意的
,
恒成立,则数列
是等差数列或等比数列.④存在奇函数
和偶函数
,使得函数
是偶函数.其中真命题的个数是( )个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cadce89f524cb272306f56eef12d797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5efa57a282806b1ecab8764b3d509b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209591cfb9f8271f5ad48d89f214f22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c0bf48663f56bd30662c362a8ebd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b76b91d06b45cb28a70121aaf8a5ec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf893b6d0d1981df0f99542d2428e84d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856dc823250ba17e8e56a1771358edcb.png)
A.1 | B.2 | C.3 | D.4 |
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6 . (1)已知
,
,
,
.问以上4个复数对应的点是否在同一个圆上?
(2)设
.
(i)求
,
;
(ii)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e8ed860eef3ab728fa3c8394b6ebeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de07ec16aee5be02324ff70b8fda3e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ee8366177d2f85613ba365480fb716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb23c64f741eb376ece7f2bfa0f7ad2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4000fe34bfdca07f458abc6f6d7b143d.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e1a2d689d36c15be2d14bf09dc088f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9faf580cb0d4068c2e37b6549a1925cd.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3766d6cc582300585e2dde80391c2325.png)
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名校
7 . 下列说法正确的个数是( )
(1)复数
的实部为
,虚部为
;(2)两个向量的夹角的范围是
;(3)三角形中三边之比等于相应的三个内角之比;(4)如果数列
的前
项和为
,则对任意
,都有
.
(1)复数
![](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/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ed8a64675883874dd1ee7f0ce11cee.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:黑龙江省牡丹江市第三中学2021-2022学年高三上学期第三次月考数学(文)试题
黑龙江省牡丹江市第三中学2021-2022学年高三上学期第三次月考数学(文)试题新疆柯坪县柯坪湖州国庆中学2023届高三上学期9月月考数学(文)试题(已下线)考点56 数系的扩充与复数的引入-备战2022年高考数学典型试题解读与变式
名校
8 . 在正三棱台
中,
是边长为
的等边三角形,且
.已知
,
,
,
分别是线段
,
的中点,当直线
上一动点
在射线
上时,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/45fdfe37-a174-4faf-9513-6a3beda731bf.png?resizew=247)
(1)证明:
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)连接
,
,已知点
在平面
投影是
,平面
是一个分别以
,
作为
,
轴的复平面,
.当
时,请直接写出
的虚部(不要求写出过程).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6e8a07dcdeec1d196fd31a616d25d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed78b13131d8ce1c65091b6b259a1082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d84cdf3d579140b8e5b6f9f4efcc23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efac9930e80e002a537bc0a6da526866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c79f3aa20d5255d03a498afafbf727.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc386b9493102a587025523dc69ccba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/45fdfe37-a174-4faf-9513-6a3beda731bf.png?resizew=247)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6d39135a2f8472d66ea00eda3b13ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b94e97d085cea077cb82a0b7d2f523e.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b63d2504bd3ecce8c10560b142356f.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/904cb7508ea31d4d1e3b39b594decfad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45224f7eac9d0cef64bf28d93e7721a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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名校
9 . 下列命题正确的是( )
A.在钝角![]() ![]() ![]() |
B.已知![]() ![]() |
C.若![]() ![]() ![]() |
D.若复数![]() ![]() ![]() ![]() ![]() |
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10 . 欧拉公式是指以欧拉命名的诸多公式,有拓扑学中的欧拉多面体公式、初等数论中的欧拉数论公式等其中最著名的是复变函数中的欧拉幅角公式——把复数、指数函数与三角函数联系起来(
,自然对数的底数
,虚数单位
).若复数
满足
,则
的虚部为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21df79115d74106845179f642f07f218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e3ce576f0766f29349db973fc22eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3cafd865f24c222772d973d84fd761b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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