名校
解题方法
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,
轴的非负半轴为极轴建立极坐标系.
(1)求曲线
的普通方程;
(2)直线
与曲线
交于点
,求线段
的长.
![](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/a47c855591777126d117511f0c3295f5.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)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48b60bb02a6f391f379d06e4d244d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2 . 在直角坐标系
中,曲线
参数方程为
(
为参数)以坐标原点为极点,
轴正半轴为极轴建立极坐标系,曲线
极坐标方程为
.
(1)写出
的普通方程和
的直角坐标方程;
(2)若曲线
与曲线
交于
,
两点,求线段
的长.
![](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/be2aa401d7f8385a48f5bdb803dc116f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/86e6cb39806a5472f4a187d0a5b73d70.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若曲线
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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3 . 在直角坐标系
中,
是过
且倾斜角为
的一条直线,又以坐标原点
为极点,
的非负半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)写出直线
的参数方程,并将曲线
的极坐标方程化为直角坐标方程;
(2)若直线
与曲线
在
轴的右侧有两个交点
,过点
作
的平行线,交
于
两点,求证:
.
![](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/d5c10f14aae6fb21e047ecb39cdf40c0.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd857fdf83c7bf71883cfdd0c79a13a.png)
(1)写出直线
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0d26766290953a9f5f7ad7791e40b2.png)
![](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/9c0f067a2a348ceb24a408f82992eab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44f461f01e01ed785cdd10a846b64dd5.png)
您最近一年使用:0次
2023-06-01更新
|
209次组卷
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4卷引用:江西师范大学附属中学2023届高三三模考试数学(理)试题
名校
4 . 在平面直角坐标系xOy中,直线
的参数方程为
(
为参数),以O为极点,
轴的正半轴为极轴建立极坐标系,曲线C的极坐标方程为
.
(1)求C的直角坐标方程以及C与y轴交点的极坐标;
(2)若直线
与C交于点A,B,与
轴交于点P,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f015d2ddf2146636a2f7565a380112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec39a5f5021d0b06208814334e6c63.png)
(1)求C的直角坐标方程以及C与y轴交点的极坐标;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7384b9afcef2d86a87eee0c66f383052.png)
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2023-05-26更新
|
740次组卷
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7卷引用:江西省南昌市部分学校2023届高三模拟考前押题模拟预测数学(理)试题
名校
5 . 已知圆C的极坐标方程为
,直线l的参数方程为
(t为参数,α为倾斜角).
(1)若圆C上存在两点关于直线l对称,求直线l的斜率;
(2)若直线与圆交于A、B两个不同的点,当
时,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb82edaa071f051e9bd0a6cd82b5dcb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b46df61fd1314caf3c4d66f7c420b2.png)
(1)若圆C上存在两点关于直线l对称,求直线l的斜率;
(2)若直线与圆交于A、B两个不同的点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699fc9b7e879af4866aaa07848dfb423.png)
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名校
6 . 直线
(t为参数),圆
(极轴与x轴的非负半轴重合,且单位长度相同).
(1)求圆心C到直线l的距离;
(2)若直线l被圆C截得的弦长为
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9cae9b7f4e91e9c80fcedffe8ba4b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362ba47e864eba162e8713c035ff9842.png)
(1)求圆心C到直线l的距离;
(2)若直线l被圆C截得的弦长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc3aaad905bb6ce8bd82cf68ef275e1.png)
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2023-05-01更新
|
449次组卷
|
5卷引用:江西省南昌市第十九中学2023届高三下学期第三次模拟考试文科数学试卷
名校
7 . “太极图”是关于太极思想的图示,其形状如对称的阴阳两鱼互抱在一起,也被称为“阴阳鱼太极图”.在平面直角坐标系
中,“太极图”是一个圆心为坐标原点,半径为
的圆,其中黑、白区域分界线
,
为两个圆心在
轴上的半圆,
在太极图内,以坐标原点为极点,
轴非负半轴为极轴建立极坐标系.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/cf8fafc0-b3cf-4970-98ad-3f6807fab2f1.png?resizew=196)
(1)求点
的一个极坐标和分界线
的极坐标方程;
(2)过原点的直线
与分界线
,
分别交于
,
两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c54373fa62652ad075f41280e44a81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/cf8fafc0-b3cf-4970-98ad-3f6807fab2f1.png?resizew=196)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)过原点的直线
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
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2023-04-23更新
|
941次组卷
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5卷引用:江西省南昌市2023届高三二模数学(理)试题
江西省南昌市2023届高三二模数学(理)试题江西省南昌市2023届高三二模数学(文)试题四川省南部中学2023届高三下学期高考考前理科数学模拟训练(一)(已下线)专题20坐标系与参数方程(已下线)专题20坐标系与参数方程.
名校
解题方法
8 . 直线l:
(t为参数,
),圆C:
(极轴与x轴的非负半轴重合,且单位长度相同).
(1)求圆心C到直线l的距离;
(2)若直线l被圆C截得的弦长为
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c3aaee83853dba10aeb912192c561cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/817e9e75925a8872149dba15c931b6b2.png)
(1)求圆心C到直线l的距离;
(2)若直线l被圆C截得的弦长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc3aaad905bb6ce8bd82cf68ef275e1.png)
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2023-03-21更新
|
225次组卷
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3卷引用:江西省南昌市第十九中学2023届高三下学期第四次模拟考试文科数学试卷
9 . 在平面直角坐标系xOy中,直线
的参数方程为:
(
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
的极坐标方程为:
.
(1)当
时,求直线l的普通方程和曲线C的直角坐标方程.
(2)直线l与曲线C交于A,B两点,若|AB|=2,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10155e6d4c34a8534f8fb000e3c54e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/925b34a1e7a48f450d883f9a0197e5c9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3416881a6f67d05fe6b67787047fc86.png)
(2)直线l与曲线C交于A,B两点,若|AB|=2,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
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2023-03-04更新
|
766次组卷
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4卷引用:江西省南昌市2023届高三第一次模拟测试数学(文)试题
10 . 在直角坐标系
中,曲线
的参数方程为
(
为参数,
),
的参数方程为
(t为参数).
(1)求
的普通方程并指出它的轨迹;
(2)以O为极点,x轴的非负半轴为极轴建立极坐标系,射线
:
与曲线
的交点为O,P,与
的交点为Q,求线段
的长.
![](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/4151fab0ff51c32c8dd5cbe9f630b3de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3db37df1f42ba2f460dfef3f3ecb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3c5be2229c21687c88b39491bf6c36.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)以O为极点,x轴的非负半轴为极轴建立极坐标系,射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905dd10639c9fef5ef8d66a124756140.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/7a5f1641947153c80b987320885a2b57.png)
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2022-12-13更新
|
864次组卷
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6卷引用:江西省南昌市第十中学2023届高三第一次模拟数学(文)试题