1 . 在平面直角坐标系
中,直线
的参数方程为
(t为参数),以坐标原点
为极点,
轴的非负半轴为极轴建立极坐标系,曲线
的极坐标方程是
.
(1)求直线
的普通方程和曲线
的直角坐标方程;
(2)若直线
与曲线
交于
两点,点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9788b1aaab7c406bb82d44188bb67d49.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2ae187cd112b9a2d192a349194b07a.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328aaba77106396d4ca644c8b7a352e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7384b9afcef2d86a87eee0c66f383052.png)
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4卷引用:贵州安顺市2023届上学期高三期末数学(文)试题
2 . 以直角坐标系原点
为极点,轴的非负半轴为极轴建立极坐标系,已知直线的参数方程为
(
为参数),曲线
的极坐标方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50284cd3c7ba28ec7e0b6f39f56e029.png)
(1)求曲线
的直角坐标方程;
(2)设直线
与曲线
相交于
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e96d9064afeda2fce23aed4f83342ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50284cd3c7ba28ec7e0b6f39f56e029.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
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3卷引用:贵州省贵阳市贵阳乐湾国际试验学校2023届高三上学期开学考数学(理)试题
名校
3 . 在直角坐标系xoy中,直线
:
,
:
,以坐标原点为极点,x轴的非负半轴为极轴建立极坐标系.
(1)求
,
的极坐标方程;
(2)若
的极坐标方程为
,设
与
交于O,P两点(O为坐标原点),过O点与
垂直的直线
与
,
分别相交于M,N(N异于点O)两点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e318cefab1d71238b6a770e9d5fe154e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4112f19ec28b5ff4f57c9a1bb01b74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384bef25d6a7f4c661e83498628c1409.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/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
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3卷引用:贵州省遵义市新高考协作体2023届高三上学期入学质量监测数学(理)试题
解题方法
4 . 平面直角坐标系中,曲线C的参数方程为
(
为参数).
(1)求曲线C的直角坐标方程;
(2)以原点为极点,x轴正半轴为极轴建立极坐标系,若P点的极坐标为
,过点P的直线交C于A,B两点,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea24806317e4493a07aab1581cb6fc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)求曲线C的直角坐标方程;
(2)以原点为极点,x轴正半轴为极轴建立极坐标系,若P点的极坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/897efac27ea9a13beaafa82ddc739b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d25e70d37af93796965efc8d342185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21fb427aebdda8f94bc7841a18173995.png)
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2卷引用:贵州省铜仁市2021-2022学年高二下学期期末质量检测数学(理)试题
名校
5 . 在平面直角坐标系xOy中,曲线C1的参数方程为
(
为参数).以坐标原点为极点,以x轴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
的普通方程和曲线
的直角坐标方程.
(2)若
与
交于A,B两点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951adc260ac760987c25fd4cd2c2188d.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/a0716101a319ddc14f275df5e3aa19f5.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若
![](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/866b81a8384cce4f24867baca2e6820c.png)
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5卷引用:贵州省贵阳市第六中学2022届高三一模数学(文)试题
6 . 在平面直角坐标系
中,已知曲线
与曲线
(
为参数),以坐标原点O为极点,
轴的非负半轴为极轴建立极坐标系.
(1)写出曲线
、
的极坐标方程;
(2)在极坐标系中,已知射线
:
(
),
,若
与
、
的公共点分别为
、
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55e67ae5ccd06b409b0aefc03be8e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1cdc07f4e0e90b04d69f15613c0d81e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)写出曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)在极坐标系中,已知射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f5d2e8186f0173d7862b1d39fb3dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7026315511e1afd55a97b5278b0dd2cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497e43425056efa33f94f2d30a9b1d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71d76e2fd46060bc0124d911379473f0.png)
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4卷引用:贵州省贵阳市五校2022届高三联合考试(七)数学(文)试题
7 . 在极坐标系下,已知圆
:
和直线
:
.
(1)求圆
的直角坐标方程和直线
的极坐标方程;
(2)求圆
上的点到直线
的最短距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a391f52e03e2710d111fbf0155282c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23fc11a3a7592c68b20f93bdde2ed3f.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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11卷引用:贵州省黔西南州金成实验学校2021-2022学年高二下学期4月月考文科数学试题
贵州省黔西南州金成实验学校2021-2022学年高二下学期4月月考文科数学试题【校级联考】福建省宁德市部分一级达标中学2018-2019学年高二下学期期中联考数学(文)试题江苏省南京市六校联合体2019-2020学年高三上学期期初数学试题甘肃省武威第六中学2019-2020学年高二下学期第二次学段考试(期末)数学(理)试题西藏林芝市第二高级中学2019-2020学年高二下学期第一学段考试(期中)数学(理)试题(已下线)专题17 坐标系与参数方程-备战2021届高考数学(理)二轮复习题型专练?(通用版)黑龙江省鹤岗市第一中学2020-2021学年高二下学期期末考试数学(文)试题新疆哈密市第十五中学2020-2021学年高二下学期期末考试数学(文)试题甘肃省高台县第一中学2021-2022学年高二下学期3月月考数学(文科)试题甘肃省会宁县第一中学2021-2022学年高二下学期期中考试数学(文)试题青海省西宁市七校2022-2023学年高二下学期期末联考文科数学试题
8 . 如图,某“京剧脸谱”的轮廓曲线C由曲线C1和C2围成.在平面直角坐标系xOy中,C1的参数方程为
(t为参数,且
).以坐标原点为极点,x轴正半轴为极轴建立极坐标系,C2的极坐标方程为
(
).
![](https://img.xkw.com/dksih/QBM/2022/4/8/2953921118093312/2954543126118400/STEM/599d2a6f-ebfc-49e2-bd98-f5026cefd74f.png?resizew=142)
(1)求C1的普通方程和C2的直角坐标方程;
(2)已知
,
,OA⊥OB.当Rt△OAB的面积最大时,求点P到直线AB距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd6bc2cc6f19f3f6eeccc62c3bfd9db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7bf787cc8423e3e206b3a6cd2ba420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266ab53d09de4ee05eb6bc616a0afb09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/278c6f21492d19ebee1a938560b91511.png)
![](https://img.xkw.com/dksih/QBM/2022/4/8/2953921118093312/2954543126118400/STEM/599d2a6f-ebfc-49e2-bd98-f5026cefd74f.png?resizew=142)
(1)求C1的普通方程和C2的直角坐标方程;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7414a224681fe7bd364cf8eda7a8c09c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc844ddd27d4a04fac665a84b055b50.png)
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6卷引用:贵州省普通高等学校招生2022届高三适应性测试数学(理)试题
贵州省普通高等学校招生2022届高三适应性测试数学(理)试题贵州省普通高等学校招生2022届高三适应性测试数学(文)试题(已下线)押全国卷(理科)第22题 坐标系与参数方程-备战2022年高考数学(理)临考题号押题(全国卷)黑龙江哈尔滨市第一二二中学2022届高三第三次模拟考试理科数学试题(已下线)安徽省江南十校2022届高三下学期3月一模理科数学试题变式题21-23(已下线)1.5 平面上的距离(练习)-高二数学同步精品课堂(苏教版2019选择性必修第一册)
名校
解题方法
9 . 在数学中,有多种方程都可以表示心型曲线,其中著名的有笛卡尔心型曲线.如图,在直角坐标系中,以原点
为极点,
轴正半轴为极轴建立极坐标系.图中的曲线就是笛卡尔心型曲线,其极坐标方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d48085c5aa3deb1fbdfa812daee0590.png)
,
为该曲线上一动点.
![](https://img.xkw.com/dksih/QBM/2022/3/9/2932408168513536/2933828616667136/STEM/3a4c700f-3e34-4408-8583-980dfe38a3d9.png?resizew=200)
(1)当
时,求
的直角坐标;
(2)若射线
逆时针旋转
后与该曲线交于点
,求
面积的最大值.
![](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/0d48085c5aa3deb1fbdfa812daee0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfba6e427bfcff921f2afd9ce0bc7559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2022/3/9/2932408168513536/2933828616667136/STEM/3a4c700f-3e34-4408-8583-980dfe38a3d9.png?resizew=200)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e5b9350de79c138cd90667735095fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
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2022-03-11更新
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12卷引用:贵州省名校联盟2022届高三3月大联考数学(理)试题
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10 . 在平面直角坐标系
中,以
为极点,
轴正半轴为极轴建立极坐标系,曲线
的极坐标方程为
,直线
的极坐标方程为
.
(1)求
与
的直角坐标方程;
(2)设点
是曲线
上的一个动点,点
满足
,点
的轨迹记为
,求
与
的交点极坐标
,其中
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdebedd02b4ea57f8562443742086d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7daa460c79ebd0bca770d94807a53fad.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155d7a3e2ed14af42c72c2c40eff8e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d48e6a649888d5389debb28aa6b1c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d971673fa55649b625c7281068dfc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7026315511e1afd55a97b5278b0dd2cc.png)
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