1 . 在直角坐标系:xOy中,已知倾斜角为α的直线l经过点
.以坐标原点为极点,x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)写出曲线C的直角坐标方程,并指出曲线C的形状;
(2)著直线l与曲线C有两个不同的交点A,B,且
,求α的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cf8af6e62058cc4e2d83d5da7f4c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce15e048949bd139273ea812c30f74b.png)
(1)写出曲线C的直角坐标方程,并指出曲线C的形状;
(2)著直线l与曲线C有两个不同的交点A,B,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e47d2c70e0de5301124d7d09ecda340.png)
您最近一年使用:0次
2023-12-20更新
|
83次组卷
|
2卷引用:贵州省黔东南自治州镇远县文德民族中学校2022届高三上学期期末数学(理)试题
名校
解题方法
2 . 如图,在平面直角坐标系
中,以坐标原点为极点,极轴所在的直线为
轴建立极坐标系,曲线
是经过极点且圆心在极轴上的直径为
的圆,曲线
是著名的笛卡尔心形曲线,它的极坐标方程为
.
(1)求曲线
的极坐标方程,并求曲线
和曲线
的交点(异于极点)的极径;
(2)若曲线
的参数方程为
(
为参数),且曲线
和曲线
相交于除极点以外的
、
两点,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40986b4c25a7dbd5c797b66212c610f6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/2/d11461e7-e543-417a-931b-7ccdccccbe6a.png?resizew=164)
(1)求曲线
![](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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008a8d19c82ff11dd8dae6f5bc67afe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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2023-09-01更新
|
622次组卷
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6卷引用:贵州省威宁彝族回族苗族自治县第八中学2023届高三数学(理)样卷(二)试题
名校
解题方法
3 . 在平面直角坐标系
中,曲线
的参数方程为
(
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
的极坐标方程为
,其中
.
(1)求曲线
与曲线
的交点的极坐标;
(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/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23dd9c89539b7223bd92dc2d60837c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b80024f36b7b8604522ba11a6ca129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15154215d62e54f503b82e63c7181ee.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fcf05c4d5f62225e0b29132c62f653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
您最近一年使用:0次
2023-08-13更新
|
496次组卷
|
4卷引用:贵州省贵阳市2023届高三3+3+3高考备考诊断性联考(三)数学(理)试题
4 . 在直角坐标系
中,圆
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,圆
的极坐标方程是
.
(1)在直角坐标系中,若直线
经过点
且与圆
和圆
的公共弦所在直线平行,求直线
的极坐标方程;
(2)若射线
与圆
的交点为
,与圆
的交点为
,线段
的中点为
,求
的周长.
![](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/8e55b035e6e99b21d1e169c03e523875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.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/69cf89e94eb51129f144d9809ec290f7.png)
(1)在直角坐标系中,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69abe959988e4c8c0739f5857ccfb0f.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5e58900c7d393263c1d420a0d99993.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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96d6c0b1e09f546c5ce77316daa8050f.png)
您最近一年使用:0次
2023-08-03更新
|
167次组卷
|
4卷引用:贵州省威宁彝族回族苗族自治县第八中学2023届高三数学(文)冲刺卷(二)试题
5 . 在直角坐标系
中,点
的坐标是
,曲线
的参数坐标方程
(
为参数,
).以坐标原点
为极点,
轴正半轴为极轴的极坐标系中曲线
的极坐标方程为
,
与
交于
,
两点.
(1)将曲线
的极坐标方程化为直角坐标方程,并指出它是什么曲线?
(2)过点
作垂直于
的直线
交
于
,
两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef3fad7648cc5091dc50d81a2ea3bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b992104248a854e6e033c26602aff813.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/27bd6de5b955ece11530dd4997b12b74.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)
(1)将曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3381639d2f052c80ca30c81587d7252d.png)
您最近一年使用:0次
2023-07-25更新
|
186次组卷
|
2卷引用:贵州省贵阳市第一中学2023届高三上学期期末理科数学试题
6 . 在平面直角坐标系
中,直线
的参数方程为
(
为参数).在以坐标原点为极点,
轴非负半轴为极轴的极坐标系下,曲线
的极坐标方程为
.
(1)求
的普通方程和
的直角坐标方程;
(2)已知点
,若直线
与曲线
相交于A,B两点,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/bee28385a259389b5f1a26cd60487bf1.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/947e6f81ed9b7988c748461ba9820a64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9b5e076078240e0c5ad9763a9824d3.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/559d66fd8b309fd440ce9bda78a579c9.png)
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2023-05-29更新
|
487次组卷
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5卷引用:贵州省遵义市2023届高三第三次统一考试数学(理)试题
7 . 直角坐标系xOy中,点
,动圆C:
.
(1)求动圆圆心C的轨迹;
(2)以坐标原点为极点,x轴正半轴为极轴建立极坐标系,曲线M的极坐标方程为:
,过点P的直线l与曲线M交于A,B两点,且
,求直线l的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943cba835f7a0aa28637ca645c46d485.png)
(1)求动圆圆心C的轨迹;
(2)以坐标原点为极点,x轴正半轴为极轴建立极坐标系,曲线M的极坐标方程为:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3399076f2a4010f492828acf481d17a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571ccb103dd1c5b04dc70f7b36ed91fe.png)
您最近一年使用:0次
2023-05-09更新
|
756次组卷
|
5卷引用:贵州省毕节市2023届高三诊断性考试(三)数学(文)试题
名校
解题方法
8 . 数学中有许多美丽的曲线,例如曲线
,(t为参数)的形状如数字8(如图),动点A,B都在曲线E上,对应参数分别为
与
,设O为坐标原点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/444a2eeb-2633-42e1-ab9d-6f3ed4fb2909.png?resizew=149)
(1)求C的轨迹的参数方程;
(2)求C到坐标原点的距离d的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11d6a96018681bcf04768dc8d7e6601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adb726efaa7daa1613f56a6d75da819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0248ff66368b4c849bc98c7d86dc644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc170fc6c893de77fdbb1d5a9b34814.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/444a2eeb-2633-42e1-ab9d-6f3ed4fb2909.png?resizew=149)
(1)求C的轨迹的参数方程;
(2)求C到坐标原点的距离d的最大值和最小值.
您最近一年使用:0次
2023-05-08更新
|
1080次组卷
|
4卷引用:贵州省部分高中2023届高三模拟考试数学(文)试题
名校
9 . 在平面直角坐标系xOy中,曲线
的参数方程为
(t为参数),点
.以O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
,射线l的极坐标方程为
.
(1)写出曲线
的极坐标方程;
(2)若l与
,
分别交于A,B(异于原点)两点,求△PAB的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a943b76240de530dbbedd1e3d871001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af74113f38fffeed8075e57d7f9d2533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b80024f36b7b8604522ba11a6ca129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44670943f3d1ba89787b7cd2060d87ac.png)
(1)写出曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若l与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
您最近一年使用:0次
2023-05-06更新
|
1331次组卷
|
8卷引用:贵州省贵阳市2023届高三适应性考试(二)数学(理)试题
名校
10 . 在平面直角坐标系
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,直线
的极坐标方程是
.
(1)求曲线
的极坐标方程;
(2)设射线
与曲线
交于点
,与直线
交于点
,求
的值.
![](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/bee711e2cc5854f68b456356c97e3a91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7066397107d4b3fbd426f609bcea6f.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/3f4dfec890cdfdda355e19463f3be813.png)
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2023-04-30更新
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4卷引用:贵州省2023届高三下学期联合考试数学(理)试题