1 . 选修4-4:坐标系与参数方程选讲.
已知曲线
的参数方程为
(
为参数),曲线
的极方程为
.
(Ⅰ)分别求曲线
和曲线
的普通方程;
(Ⅱ)若点
,求
的最小值.
已知曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e5daeb10375e905a48d8546a542908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad04181c5653f22f3d7903e52d147605.png)
(Ⅰ)分别求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(Ⅱ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b56eee29dc7dc2f8b1b5388bfc196a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05da40a2d7dab5d6a003906ca19d4749.png)
您最近一年使用:0次
2 . 选修4—4:坐标系与参数方程
已知倾斜角为
的直线
经过点P(1,1).
(Ⅰ)写出直线l的参数方程;
(Ⅱ)设直线l与
的值.
已知倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa42b56b1c92689a080b58cb603a642.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571959911882752/1571959917780992/STEM/1b97d2c57682454199c408213151eb33.png)
(Ⅰ)写出直线l的参数方程;
(Ⅱ)设直线l与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd124fa328e3163901398d8324547205.png)
您最近一年使用:0次
2016-12-03更新
|
391次组卷
|
2卷引用:2015届广西桂林十八中高三上学期第四次月考文数学试卷
2014·吉林长春·二模
3 . 已知直线
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,圆
的极坐标方程为
.
(1)求圆
的直角坐标方程;
(2)若
是直线
与圆面
≤
的公共点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2014/4/23/1571642532470784/1571642538803200/STEM/40ef6baaf88549c9b0aff336b22426c8.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/282f19548dd86406c630335a49bb00e1.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68fe867846a0e12ddb5fda19a5f0019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8dfa098e9aef3f2fdf76a93fabf0d5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfb3efcdf3989e29185db8d886fb612.png)
您最近一年使用:0次
2016-12-02更新
|
1023次组卷
|
5卷引用:2016届广西自治区桂林柳州高考压轴理科数学试卷
2016届广西自治区桂林柳州高考压轴理科数学试卷(已下线)2014届吉林省长春市高中毕业班第二次调研测试文科数学试卷(已下线)2013-2014学年山西省广灵第一中学高二下学期期末考试文科数学试卷2017届河南南阳一中高三理上学期月考四数学试卷2017届湖南长沙一中高三理月考五数学试卷
4 . 选修4—4:坐标系与参数方程
已知倾斜角为
的直线
经过点P(1,1).
(Ⅰ)写出直线
的参数方程;
(Ⅱ)设直线
与直线
相交于
两点,求
的值.
已知倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa42b56b1c92689a080b58cb603a642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6e3068d45760efcd652868d4fdc325.png)
(Ⅰ)写出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6e3068d45760efcd652868d4fdc325.png)
(Ⅱ)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6e3068d45760efcd652868d4fdc325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311ba39e38989df88190ac6b07cf2855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a9f72141dc3758484c75488dec62be.png)
您最近一年使用:0次
5 . 已知极坐标系的极点在直角坐标系的原点处,极轴与x轴的正半轴重合,直线l的极坐标方程为:
,曲线C的参数方程为:
(α为参数).
(I)写出直线l的直角坐标方程;
(Ⅱ)求曲线C上的点到直线l的距离的最大值.
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592985382912/1572592991256576/STEM/b4eb1ef1540b4319b529f9362b721d0e.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592985382912/1572592991256576/STEM/c8262a6c27324291b71d920c5333965c.png)
(I)写出直线l的直角坐标方程;
(Ⅱ)求曲线C上的点到直线l的距离的最大值.
您最近一年使用:0次