1 . 在极坐标系中,点
到直线
的距离等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a5ed9dda5028753dd3594d83533b20d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b262d32d5d18c10f21db02498a83ce77.png)
A.1 | B.2 | C.3 | D.![]() |
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2021-12-22更新
|
960次组卷
|
2卷引用:北京西城区2019届高三上学期期末数学(理)试题
解题方法
2 . 在直角坐标系
中,直线
的参数方程为
(
为参数),圆
的参数方程为
(
为参数).
(1)求
和
的普通方程;
(2)将
向左平移
后,得到直线
,若圆
上只有一个点到
的距离为1,求
.
![](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/10b261518f18ceafe25675b68d5ba2ae.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/43bdbee91a1ecf169fdc51b1fba63ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f07948e9258b482a2164ac871f90f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
3 . 在极坐标系中,圆
:
的圆心到点
的距离为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdebedd02b4ea57f8562443742086d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
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2020-08-16更新
|
493次组卷
|
5卷引用:【区级联考】北京市丰台区2019届高三第一学期期末考试数学(理)试题
名校
4 . 在极坐标系中,直线
与圆
交于A,B两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6d69076ca6381d9d401be855e58c79.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8850594bdc157e6aad81cba0011a196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de2d02fb5d7df50538515210f734485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6d69076ca6381d9d401be855e58c79.png)
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2019-04-07更新
|
630次组卷
|
2卷引用:【区级联考】北京市顺义区2019届高三期末理科数学试题
名校
5 . 设
分别为直线
(t为参数)和曲线C:
(
为参数)上的点,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0d7680e1e2b77a0a963ab464fb9671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e1e2aec6fe32ae416f90becb8d227d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a1ee2ea56b649946ca15c7a9ca0755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-02-02更新
|
1228次组卷
|
3卷引用:【区级联考】北京市昌平区2019届高三第一学期期末数学(理)试题
6 . 在极坐标系中,下列方程为圆
的切线方程的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab37e95cbf394528417f55dd6e20811.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 在极坐标系中,直线
,圆
.以极点
为原点,极轴为
轴正半轴建立直角坐标系
.
(1)求直线
的直角坐标方程和圆
的参数方程;
(2)已知点
在圆
上,
到
和
轴的距离分别为
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8fd7911634bfd44f10cf297e48c06b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd5fac159d562fde291916f8cda4cd6d.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/7ee31829d0d4d5f779a957d7df8058ab.png)
(1)求直线
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a4b32d388558eb9a9e4f0f2dd57c09.png)
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2019-01-28更新
|
1329次组卷
|
5卷引用:北京市昌平区新学道临川学校2019-2020学年高三上学期期末数学(文)试题
8 . 直线
为参数
与曲线
为参数
的公共点的个数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f74e7994b2ced0837665b6ea2ee9d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a7ceb68ea027d2baacd428a47baaf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
您最近一年使用:0次
9 . 在极坐标系中
,方程
表示的圆为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdebedd02b4ea57f8562443742086d3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-01-25更新
|
966次组卷
|
2卷引用:北京市海淀区2018届高三第一学期期末理科数学试题
10 . 在极坐标系中,已知点A是以
为圆心,
为半径的圆上的点,那么点A到极点的最大距离是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2137436455816a17f748acd06e7eb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
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