1 . 在极坐标系中,已知
,
,则
,
两点间的距离为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e883c16b16b80e126c4c5859ee81bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f7088ad2c6e60468398f670ad614c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2019-07-04更新
|
638次组卷
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5卷引用:广西天等中学2019-2020学年高二上学期期中考试数学理科试题
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2 . 在直角坐标系
中,直线
的参数方程为
(
为参数),以原点为极点,
轴正半轴为极轴建立极坐标系,圆
的极坐标方程为
.
(1)写出直线
的普通方程及圆
的直角坐标方程;
(2)点
是直线
上的点,求点
的坐标,使
到圆心
的距离最小.
![](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/5ca664e974778728f10c860ed98bf804.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/46a9318b83a0a52e7307812a2916ee8c.png)
(1)写出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2017-02-16更新
|
1381次组卷
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7卷引用:广西北海市2019-2020学年高二下学期期末教学质量检测数学(理)试题