1 . 直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71187e41a7278c6f1893852944bb782.png)
与直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d4b99f920ce922c4709077a6662446.png)
之间的距离是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71187e41a7278c6f1893852944bb782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eaa0b2a5814756afa0246e2d2b9187c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d4b99f920ce922c4709077a6662446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a4f5a6de114cd2710e6d7bd7b4c3a6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-01-02更新
|
1669次组卷
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7卷引用:四川省宜宾市叙州区第一中学2020-2021学年高二上学期第一次月考数学(文)试题
2 . [选修4—4:坐标系与参数方程]
在平面直角坐标系
中,曲线
的参数方程为
(
为参数,
),以坐标原点
为极点,
轴的非负半轴为极轴,建立极坐标系,直线
的极坐标方程为
.
(1)设
是曲线
上的一个动点,当
时,求点
到直线
的距离的最小值;
(2)若曲线
上所有的点都在直线
的右下方,求实数
的取值范围.
在平面直角坐标系
![](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/cbaf9fa94e2d0be33952022a5070e18d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b3cacc24c7cd34a4a7c20292ad5382.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95227443b8ea51f1a5c7eec8feabffa9.png)
(1)设
![](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/f7fa79a550591eb9e1bd07bced3a08fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-06-05更新
|
898次组卷
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5卷引用:四川省宜宾市叙州区第二中学校2020-2021学年高三上学期开学考试数学(文)试题