1 . 在直角坐标系
中,曲线
的参数方程为
(
为参数).以坐标原点
为极点,
轴的正半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)求曲线
的普通方程与曲线
的直角坐标方程;
(2)设直线
:
(
为参数)与曲线
,
的交点从上到下依次为
,
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9eeb59463cbaa51c8d3f8a3270c4678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b618bc2ef9e8b304ab5becaf08333da7.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8855699a2f51807743d3f26d442015f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc1df69d86477ecd7073cab29f2407b.png)
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4卷引用:内蒙古呼和浩特市2023届高三二模数学(理)试题
内蒙古呼和浩特市2023届高三二模数学(理)试题内蒙古呼和浩特市2023届高三二模数学(文)试题(已下线)四川省巴中市2023届高三“一诊”考试数学(理)试题变式题21-23(已下线)专题20坐标系与参数方程
2 . 如图,在极坐标系中,曲线
是以
为圆心的半圆,曲线
是以
为圆心的圆,曲线
、
都过极点O.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/58be9672-e888-4e40-870d-e4f94ced65ce.png?resizew=245)
(1)分别写出半圆
和圆
的极坐标方程;
(2)直线
与曲线
、
分别交于M、N两点(异于极点O),P为
上的动点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600c6160a65fbb1f4abb29dadcd10a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce3d8508365fc3de94e709aae41ecf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/58be9672-e888-4e40-870d-e4f94ced65ce.png?resizew=245)
(1)分别写出半圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6dbb59b1ec45f43957957fe8ecf7f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
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4卷引用:内蒙古呼和浩特市2023届高三第一次质量数据监测理科数学试题
内蒙古呼和浩特市2023届高三第一次质量数据监测理科数学试题内蒙古呼和浩特市2023届高三第一次质量数据监测文科数学试题(已下线)专题21坐标系与参数方程(已下线)专题10-1 极坐标与参数方程题型归类(讲+练)-1
名校
3 . 在直角坐标系
中,曲线
的参数方程为
(
为参数),以坐标原点为极点,
轴的正半轴为极轴建立极坐标系,两坐标系取相同单位长度,直线
的极坐标方程为
.
(1)求曲线
的普通方程和直线
的直角坐标方程;
(2)求曲线
上的点到直线
距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120d74b8e5d91bd4ebac6d299b2cc008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f0b14bc34c4216b5d38d6d6b79746b.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2022-05-08更新
|
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4卷引用:内蒙古呼和浩特市2022届高三第二次质量数据监测文科数学试题
4 . 已知在极坐标系中,点A的极坐标为
,曲线
.以极点为坐标原点,极轴为x轴正半轴,建立直角坐标系,若直线l过A点,且倾斜角为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)求直线l的参数方程与曲线C的直角坐标方程;
(2)若直线l与曲线C交于B、C两点,且
,求直线l的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e456686aee71ad0f10748b3db0f08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4797e9db6ef10d0f3350acd2c649ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)求直线l的参数方程与曲线C的直角坐标方程;
(2)若直线l与曲线C交于B、C两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bce2d401ed291dc60644bc96d5d5d83.png)
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名校
5 . 在直角坐标系
中,已知曲线
的参数方程为
(
为参数),直线
的方程为
.以坐标原点
为极点,
轴的正半轴为极轴建立极坐标系.
(1)求曲线
和直线
的极坐标方程;
(2)若点
在直线
上且
,射线
与曲线
相交于异于
点的点
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c12d9f29e2a29c6d6ecba66eb2e9118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c862bd25b273485cfa9fbd3fa04192ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaecdbcf9d0518f42e0f28ea9d1e3f51.png)
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15卷引用:内蒙古呼和浩特市第二中学2023届高三下学期2月份测试(一模考前模拟)文科数学试题
内蒙古呼和浩特市第二中学2023届高三下学期2月份测试(一模考前模拟)文科数学试题内蒙古呼和浩特市第二中学2023届高三下学期2月份一模考前模拟理科数学试题四川省成都市2021届高三第二次诊断性检测数学(理科)试题四川省成都市2021届高三第二次诊断性检测数学(文科)试题(已下线)专题37 仿真模拟卷06-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题40 仿真模拟卷06-2021年高考数学(理)二轮复习热点题型精选精练(已下线)精做07 坐标系与参数方程、不等式选讲-备战2021年高考数学(理)大题精做(已下线)解密21 坐标系与参数方程(分层训练)-【高频考点解密】2021年高考数学(文)二轮复习讲义+分层训练(已下线)解密23 坐标系与参数方程(分层训练)-【高频考点解密】2021年高考数学(理)二轮复习讲义+分层训练(已下线)押第22题 极坐标与参数方程-备战2021年高考数学(理)临考题号押题(全国卷2)内蒙古霍林郭勒市第一中学2021-2022学年高二上学期12月月考数学(理科)试题四川省内江市威远中学2021-2022学年高三下学期第一次月考数学(理)试题四川省内江市威远中学2021-2022学年高三下学期第一次月考数学(文)试题陕西省西安市2024届高三第一次质量检测文科数学试题陕西省西安市2024年高三第一次质量检测理科数学试题
名校
6 . 在花语中,四叶草象征幸运.已知在极坐标系下,方程
对应的曲线如图所示,我们把这条曲线形象地称为“四叶草”.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/4fe347f8-bbe9-453c-b967-c477883d248c.png?resizew=161)
(1)当“四叶草”中的
时,求以极点为圆心的单位圆与“四叶草”交点的极坐标;
(2)已知
为“四叶草”上的点,求点
到直线
距离的最小值以及此时点
的极坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9e1dd70ccd7718f7ede19005034cad.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/4fe347f8-bbe9-453c-b967-c477883d248c.png?resizew=161)
(1)当“四叶草”中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38fec745f18e1c06ecd27a5f6b2577f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85653d94b07f0668246f029618cb6edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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7 . 在直角坐标系
中,直线
(
为参数),以坐标原点
为极点,
轴的正半轴为极轴建立极坐标系,曲线
.
(1)求曲线
被直线
截得的弦长;
(2)与直线
垂直的直线
与曲线
相切于点
,求点
的直线坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6978f5b5952dcea199ef78345d6e4638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7400f4549df2c8a242f01a0fbfd388.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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解题方法
8 . 在极坐标系中,圆
是以点
为圆心,
为半径的圆.
(1)求圆
的极坐标方程;
(2)求圆
被直线
:
所截得的弦长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2dbe826db31c86d2b30ce941e5e721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983db74af355fdc648d9df88674ddea0.png)
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2017-12-03更新
|
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|
2卷引用:内蒙古呼和浩特市2018届高三年级质量普查调研考试数学理试题
9 . 选修4-4:坐标系与参数方程
在直角坐标系
中,直线
,曲线
(
为参数),以坐标原点
为极点,以
轴正半轴为极轴建立极坐标系.
(1)求直线
及曲线
的极坐标方程;
(2)若直线
的极坐标方程为
(
),设
与曲线
的交点为
,求
的面积及
与
交点的极坐标.
在直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb242db36e135e4cb19e87de75bc531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffe30aab6c756bb838649691175fdfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe211e0dea7a44863e5e1706633c3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce619c464f2aa04178ea0111ba60544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d9ccc4246c82939d8a659db9f28a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/659e156eaa4aa5369cb6250c958876db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619ab4ea4a7e500c8658b16506015d5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d9ccc4246c82939d8a659db9f28a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94165c5047e68e952df7a8dc6dc32fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266f65e4f3c47d32014d610419b0215f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce619c464f2aa04178ea0111ba60544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d9ccc4246c82939d8a659db9f28a87.png)
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