名校
解题方法
1 . 在极坐标系Ox中,已知点
,直线l过点A,与极轴相交于点N,且
.
(1)求直线l的极坐标方程;
(2)将OA绕点O按顺时针方向旋转
,与直线l交于点B,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4cc285893eb290a16fdbfbfa10f77fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a81a8a3024b1dd7f7c03b17796b695f.png)
(1)求直线l的极坐标方程;
(2)将OA绕点O按顺时针方向旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
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|
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4卷引用:河南省开封市2022届高三三模理科数学试题
河南省开封市2022届高三三模理科数学试题河南省开封市2022届高三三模文科数学试题(已下线)考向45坐标系与参数方程(重点)-1四川省绵阳中学2022-2023学年高二上学期11月月考数学(理)试题
名校
解题方法
2 . 在平面直角坐标系中,定义
、
两点间的直角距离为
,如图,
是圆
当
时的一段弧,
是
与
轴的交点,将
依次以原点
为中心逆时针旋转
五次,得到由六段圆弧构成的曲线.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de49f3cfe85c4ae1d7ecb30075848e87.png)
_______ .若点
为曲线上任一点,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af405a054bfe7fb7ce40e48d816467e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bea37e25ba5e11e5e2c428996f74e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978ce4ca52b9c915574d50d64ce348b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239ff12eb6cba0100f0dadb847c90ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de49f3cfe85c4ae1d7ecb30075848e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4298f459599feb1a5ed4dce607b8e3d.png)
![](https://img.xkw.com/dksih/QBM/2021/5/8/2716842768228352/2718602291453952/STEM/3903e3564b0e40039bf873d70ad1e715.png?resizew=166)
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5卷引用:福建省南平市2021届高三二模数学试题
福建省南平市2021届高三二模数学试题湖北省武汉市第二中学2021-2022学年高三上学期暑期模拟数学试题(已下线)专题14 参数方程与极坐标方程-备战2022年高考数学(文)母题题源解密(全国乙卷)(已下线)专题27 直线与圆的综合应用-1北京市大兴区2023-2024学年高二上学期期中检测数学试题
3 . 已知点
到点
和点
的距离之和为4,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17618d8d22ebb3fd6835a7eb139b4f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13683e2ecf2164a0adbfdb9923d210a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
A.有最大值1 | B.有最大值4 | C.有最小值1 | D.有最小值![]() |
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4 . 如图,在极坐标系
中,正方形
的边长为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd0caec008c15302ca973b8e655b748.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/9e438ea4-5afe-4ddb-a414-4c0bb6bef0c2.png?resizew=199)
(1)求正方形
的边
的极坐标方程;
(2)若以
为原点,
分别为轴,
轴正方向建立平面直角坐标系,曲线E:
与边BC,CD分别交于点
Q,求直线
的参数方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab158dd9e96abcae0f115f54fa66c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd0caec008c15302ca973b8e655b748.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/9e438ea4-5afe-4ddb-a414-4c0bb6bef0c2.png?resizew=199)
(1)求正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab158dd9e96abcae0f115f54fa66c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481e426224c3a3ce9bb5a731eed81c40.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79e77ce349def2476f60d0349d445dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d35465f3e40ce00a1dce54b943ae183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fbc229c957487495bb8cda1d4cfd8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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四川省泸州市2021-2022学高三第一次教学质量诊断性考试数学(理)试题四川省泸州市2021-2022学年高三第一次教学质量诊断性考试数学(文)试题四川省宜宾市第四中学2022届高三二诊模拟考试数学(理)试题四川省宜宾市第四中学2022届高三二诊模拟考试数学(文)试题(已下线)专题28 极坐标与参数方程解答题20题-备战2022年高考数学冲刺横向强化精练精讲
5 . 在极坐标系中,以极点O为圆心的圆O经过点A(2,-π).
(1)求圆O的极坐标方程;
(2)已知MN为圆O的一条直径,射线OP⊥MN,且OP交圆O于P点、交直线
于点Q,求
PQM的面积的最小值.
(1)求圆O的极坐标方程;
(2)已知MN为圆O的一条直径,射线OP⊥MN,且OP交圆O于P点、交直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/782c7cef86c279877b3e80e53fb53d1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
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广西师大附属外国语学校2021届高三5月高考考前模拟考试数学(理)试题(已下线)专题22 极坐标与参数方程-备战2022年高考数学(理)母题题源解密(全国乙卷)河南省信阳市罗山县2021-2022学年高三上学期第二次调研考试文科数学试题
名校
6 . 已知点
与
关于坐标原点对称,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbff397ced62d95bc9c1563d5145d4d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14e520be9f58ff30eff40b10ceb0d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
A.5 | B.1 | C.![]() | D.![]() |
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名校
7 . 极坐标是指在平面内取一个定点O,叫极点,引一条射线
,叫做极轴,再选定一个长度单位和角度的正方向(通常取逆时针方向).对于平面内任何一点M,用
表示线段
的长度,
表示从
到
的角度,有序数对
就叫点M的极坐标.我们经常以坐标原点为极点,x轴正半轴为极轴,从而可以进行直角坐标和极坐标的转化.如直角坐标
的极坐标形式为
,极坐标方程
的直角坐标方程为
.则以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd40398a8a965a4ae623a2ab2131a9c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe211e0dea7a44863e5e1706633c3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281203d3201719fb8d47c399ceeea53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8410a8c1e5ebb292cb6bd4ebc2b77db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8dfc7cd9f30b06fb65c2bb3b211249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b9f330116fcfe8a3ecc13344d609b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192c5142e2d6fccf1ddc6984a635f8f5.png)
A.直角坐标![]() ![]() |
B.极坐标![]() ![]() |
C.直角坐标方程![]() ![]() |
D.极坐标方程![]() ![]() |
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名校
8 . 以平面直角坐标系的原点为极点,
轴正半轴为极轴,建立极坐标系,两种坐标系中取相同的长度单位,设点
的极坐标为
,直线
过点
且倾斜角为
,圆
的极坐标方程为
.
(1)写出点
的直角坐标,直线
的标准参数方程,并把圆
的方程化为直角坐标方程;
(2)设直线
与圆
交于
、
两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dfa01ada016e445e9d1f0af2da2013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87454bbb4935421bc1ba124d31f5600.png)
(1)写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843363e1d63e1e4b8a6bde5825ef5a4f.png)
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9 . 已知直线
:
(
为参数).
(1)当
时,求直线
的斜率;
(2)若
是圆
:
内部一点,
与圆
交于
、
两点,且
,
,
成等比数列,求动点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a106912c62d48bddb8f9c4eb4c126d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3416881a6f67d05fe6b67787047fc86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827539d066d1b78e7ef8bc1569864971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/d063ec7f9dbeba72fabf4437f9400e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f645d4b09fba53f971172cd2602c691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ce8eed2660a33465a7f764e76cdba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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10 . 已知曲线C的极坐标方程为
.
(1)若直线
过原点,且被曲线C截得弦长最短,求此时直线
的标准形式的参数方程;
(2)
是曲线C上的动点,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4ac1231479c8318f24ceb879072e32.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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