1 . 在平面直角坐标系
中,以坐标原点
为极点,
轴正半轴为极轴建立极坐标系,直线
的极坐标方程为
,曲线
的参数方程为
(
为参数,
)在曲线
上求点
,使点
到
的距离最小,并求出最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/5af11a7ecfafc4f6a982862c5b249463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a0e474f983da38aed65883314ce0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ae470980d6e3b53c65b9d42d1f011c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-01-31更新
|
321次组卷
|
2卷引用:2020届江苏省徐州市高三上学期第一次质量抽测数学试题
2 . 已知曲线C1的极坐标方程为
,以极点为原点,极轴为x轴的非负半轴建立平面直角坐标系,曲线C2的参数方程为
,求曲线C1与曲线C2交点的直角坐标
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67617dc9764b727d45cb7ab369c8ea1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11a8c78989fb31733c9f5de34c030d1.png)
您最近一年使用:0次