1 . 在极坐标系下,已知圆O:
和直线l:
.
(1)求圆O和直线l的直角坐标方程;
(2)当
时,求直线l与圆O公共点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219b3e5972e28e8d06937b081689f476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11535c377a3bc9a74d9a3c0ae7f8c123.png)
(1)求圆O和直线l的直角坐标方程;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3caed74a0f657fc5b04d43a7106cfb4.png)
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2 . 平面直角坐标系xOy中直线:
:
,(t为参数).以坐标原点O为极点,x轴正半轴为极轴建立极坐标系,曲线C的极坐标方程为
;
(1)求直线l的普通方程和曲线C的直角坐标方程;
(2)设点M的直角坐标为(0,2),直线l与曲线C的交点为A,B,求|MA|+|MB|的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b100d991e56af9f58cf75a8efe20985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/052042ebc748ca2ecefa9be15d5cce1e.png)
(1)求直线l的普通方程和曲线C的直角坐标方程;
(2)设点M的直角坐标为(0,2),直线l与曲线C的交点为A,B,求|MA|+|MB|的值.
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3 . 在平面直角坐标系xOy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,直线
的极坐标方程为
.
(1)求曲线
的极坐标方程和直线
的直角坐标方程;
(2)射线
与曲线
的交点为
,与直线
的交点为
,记点
的直角坐标为
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cea8636ba903a7a17ba68f920a37dd.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed0ce4e233e24766e036993c14b4b08.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67784255e2f22f0634dc7f72e4c7e4bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4159b0469eb8e61eb5f6278a80176a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
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2022-07-13更新
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3卷引用:新疆生产建设兵团第二师八一中学2023届高三上学期第一次月考数学(文)试题
4 . (1)在极坐标系中,点
的极坐标为
,求以
为圆心,以2为半径的圆的极坐标方程;
(2)在平面直角坐标系中,求曲线
经过伸缩变换
后的曲线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94869ae8f4e594e8a38a5549006f444d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)在平面直角坐标系中,求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90af67e4c90e378ade7773722e805b59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e3b6be88472956c86a80e6a4d99d21.png)
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5 . 以坐标原点为极点,x轴正半轴为极轴建立极坐标系,曲线
的极坐标方程为
.在直角坐标系xOy中,直线l的方程为
.
(1)若点M为曲线
上的动点,求点M到直线l的距离的最小值;
(2)倾斜角为
的曲线
过点
,交曲线
于A,B两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7f40f7eb906249ffb2a29cef9f533d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e35701dd16dbf6ec916064880b8b52.png)
(1)若点M为曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cc0f9aa168e43cc5759f017d69b498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7384b9afcef2d86a87eee0c66f383052.png)
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2022-06-21更新
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3卷引用:新疆维吾尔自治区喀什第六中学2023届高三上学期11月月考文科数学试题
名校
解题方法
6 . 在直角坐标系xOy中,已知直线l过点
倾斜角为
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c05ed7391864f6b523a13c9e2575987.png)
(1)以坐标原点为极点,x轴正半轴为极轴建立极坐标系,求点M关于曲线
R)的对称点的极坐标;
(2)已知点A,B分别是直线l与x,y轴的交点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ee0c84b869ec66cc7a67e4695a3fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/225a9825139eb64fe9f84cfeffe63eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c05ed7391864f6b523a13c9e2575987.png)
(1)以坐标原点为极点,x轴正半轴为极轴建立极坐标系,求点M关于曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95392784e013fc1a5a9001b6d7643c1.png)
(2)已知点A,B分别是直线l与x,y轴的交点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c54cd0878ea19f3ae4d35348c04e7f.png)
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2022-06-07更新
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3卷引用:新疆喀什地区莎车县第一中学2023届高三上学期11月月考文科数学试题
名校
7 . 在直角坐标系
中,曲线
方程为
,直线
的参数方程为
(
为参数),若曲线
截直线
所得线段的中点坐标为
,则
的斜率是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4e28d8a9c02bb06f9f67dc897e2451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e1929da1e95272ae3e6596e1a946dd0.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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3卷引用:新疆生产建设兵团第二师八一中学2023届高三上学期第一次月考试数学(理)试题
8 . 已知曲线
,直线 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a4cb468574ed4c60547a8c6bfb32b9.png)
(1)将直线
的极坐标方程化为直角坐标方程;
(2)设点P 在曲线C 上,求 P点到直线
的距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b911af5401fa6a7f30a3bac1a6b1e23e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a4cb468574ed4c60547a8c6bfb32b9.png)
(1)将直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设点P 在曲线C 上,求 P点到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2卷引用:新疆喀什市普通高中2022届高三上学期期末考试数学(理)试题
解题方法
9 . 设
,
是两个非零向量,
,
,过
的起点
和终点
,分别作
所在直线的垂线,垂足分别为
,
,得到
,则
叫做向量
在向量
上的投影向量.如下图,已知扇形
的半径为1,以
为坐标原点建立平面直角坐标系,
,
,则弧
的中点
的坐标为________ ;向量
在
上的投影向量为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b536ac375a0b74e9c7efbc585f987f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83e925aa480ab51c8e5b60de95fbd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe2d802f2b37e7db198c5a3c1df9a4.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/84a1a69d7460d12d4facd43e0d941190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae818a9f8019b33ec8a61caee7cadf6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae818a9f8019b33ec8a61caee7cadf6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72249422a8b4ff069fed7aaa9a4f9f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a6d9ae681adf035e8a77078ce9b955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becc981ba29bf017d0c3a5ab1da8b8a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329fdf7d989f77a32ca9e0361a9cc956.png)
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986258238570496/2987666299437056/STEM/adcda0c8cccb42c2b54ac2670000326a.png?resizew=181)
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2卷引用:新疆克拉玛依市2022届高三下学期第三次模拟检测数学(文)试题
10 . 在平面直角坐标系
中,直线l过点
,倾斜角为
.曲线C的参数方程为
(t为参数).
(1)设
,P,Q分别为直线l和曲线C上的两个动点,求
的最小值;
(2)若直线l和曲线C交于M,N两点,且
成等比数列,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25059a7a9c09947e44aa1f957dc79ba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a386230a6399a81bbbc52263e1cece7.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ece8456ea2af7a2681385207fcd85d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
(2)若直线l和曲线C交于M,N两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad42fecd002cd98c7894608e52025f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
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2022-05-22更新
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2卷引用:新疆乌鲁木齐地区2022届高三下学期第三次质量监测数学(理)试题(问卷)