名校
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,
轴正半轴为极轴,建立极坐标系.已知点
的直角坐标为
,过
的直线
与曲线
相交于
,
两点.
(1)若
的斜率为2,求
的极坐标方程和曲线
的普通方程;
(2)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/3f44e1237be15d8bef71d0d33cd9f86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f4ea7498731e5af223a75a5ab7f32c.png)
您最近一年使用:0次
2020-02-01更新
|
998次组卷
|
9卷引用:天津市蓟州区第一中学2022-2023学年高三上学期期末模拟数学试题
名校
2 . 在平面直角坐标系
中,以原点
为极点,
轴的正半轴为极轴建立极坐标系,已知圆
的直角坐标方程为
.
求圆
的极坐标方程;
设圆
与圆
:
交于
两点,求
.
![](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/93f143ca890a2e92f28a942cbad62781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423496676206349f558163a1f8fa0dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2019-07-17更新
|
543次组卷
|
2卷引用:重庆市南开中学2018-2019学年高2020级高二下学期期末数学(理)试题
名校
3 . 已知直线
:
(
为参数),曲线
(
为参数).
(1)设
与
相交于
,
两点,求
;
(2)若把曲线
上各点的横坐标压缩为原来的
倍,纵坐标压缩为原来的
倍,得到曲线
,设点
是曲线
上的一个动点,求它到直线
距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325466cda62a1d91343b4d854a914f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e96b0dabd12cac642df82d3337a7f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)设
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)若把曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-03-12更新
|
1899次组卷
|
7卷引用:天津市蓟州区第一中学2022-2023学年高三上学期期末模拟数学试题
4 . 已知直线
:
(
为参数)与
轴交于点
,点
是圆
上的任一点,则
的最大值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147361cfbdacf91f4e4646854cd2cbdc.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c52ae4f01e98276ec3cf114ef15861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35b1e8a952aac4f4cdaaf02d868d04.png)
您最近一年使用:0次
2019-01-12更新
|
511次组卷
|
2卷引用:【校级联考】天津市蓟州等部分区2019届高三上学期期末联考数学(理)试题
5 . 在平面直角坐标系
中,已知抛物线
(
为参数)的焦点为
,动点
在抛物线上,动点
在圆
(
为参数)上,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c878f22864c8bacafe3b802b243bb2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f527593413e6f7d4d7c565fc7c500339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6288233eaba9ae91e2c3683eb1c6c3d.png)
您最近一年使用:0次
名校
6 . 曲线
的极坐标方程
,曲线
的参数方程为
,以极点为原点,极轴为
轴正半轴建立直角坐标系,则曲线
上的点与曲线
上的点最近的距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa841c771367399f51d2bfcb9d37e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b9f459c80ddc5218764732e17231e7.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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
您最近一年使用:0次
2018-02-05更新
|
529次组卷
|
2卷引用:天津市第一中学2017-2018学年高二上学期期末考试数学(理)试题2
名校
7 . 在极坐标系中,圆
的圆心的极坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ac14af386b136a517adb451ef34979.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-01-12更新
|
4005次组卷
|
13卷引用:重庆市南开中学2018-2019学年高2020级高二下学期期末数学(理)试题
重庆市南开中学2018-2019学年高2020级高二下学期期末数学(理)试题内蒙古阿拉善左旗高级中学2017-2018学年高二下学期期末考试数学(文数)试题宁夏石嘴山市第三中学2017-2018学年高二上学期期末考试数学(文)试题黑龙江省齐齐哈尔市第八中学2018-2019学年高二上学期期末考试数学(理)试题重庆市南开中学2018-2019学年高二下学期期末考试理科数学试题2017-2018学年黑龙江省黑河市孙吴一中高二 (上)期中数学试卷(理科)广西陆川县中学2017-2018学年高二下学期开学考试数学(文)试题四川省绵阳南山中学2018-2019学年高二下学期期中数学(文)试题安徽省合肥一六八中学2019-2020学年高二下学期第四次线上测试数学(文)试题贵州省兴仁市凤凰中学2019-2020学年高二下学期第一次月考数学(文)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)试题河南省信阳市浉河区新时代学校2021-2022学年高二下学期第三次月考数学(文)试题河南省信阳市浉河区新时代学校2021-2022学年高二下学期第三次月考数学(理)试题