1 . 在极坐标系中,曲线
被直线
所截得的弦长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22fae16bd3b560d7b4162fa974616c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95fc45ef428d2de0bf23b66d0e7dc2f4.png)
您最近一年使用:0次
2019-07-12更新
|
628次组卷
|
3卷引用:福建省泉州市普通高中2018-2019学年高二下学期期末数学试题
2 . 已知圆
的极坐标方程为
,直线
的参数方程为
(
为参数).若直线
与圆
相交于不同的两点
.
(1)写出圆
的直角坐标方程,并求圆心的坐标与半径;
(2)若弦长
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e58a71fae1de5266cd2ac0bcf526cb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111a8ff5a388b990b0db7d0846e411aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/f6bce3d91ca23b86d8c6625f2632e437.png)
(1)写出圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若弦长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4963d116d232acb4f69e86455cdf81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2017-02-08更新
|
745次组卷
|
2卷引用:福建省泉港一中2016-2017学年高二下学期期末考文科数学试题