已知直线
的参数方程为
(
为参数),点
是曲线
(
为参数)上的任一点,则点
到直线
距离的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd283ec8fc87f11ca293a438612f8afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e4b5c26a48e829f5bcf8b0802bb85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
2017高二·全国·课后作业 查看更多[2]
更新时间:2017-11-27 15:23:33
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【推荐1】若
分别是曲线
与圆
上的点,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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【推荐2】已知圆
,则圆
与圆
的位置关系是___________ ;若点P在直线l:
上运动,点Q在圆
与圆
的圆周上运动,则|PQ|的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b49774540df725b954255316e7d04b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fd72f36c81a55cafa92739ee87f743.png)
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【推荐1】过椭圆
(
为参数)的右焦点作一直线交椭圆于
、
两点,若
,则该直线斜率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c546d0938e6c3e2969bbb495512427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7af2bd534d4fae3779bc0468b236415.png)
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【推荐2】以直角坐标系的原点为极点,
轴的正半轴为极轴,并在两种坐标系中取相同的长度单位,已知直线的极坐标方程为
,它与曲线
(
为参数),相交于两点
和
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334781c7fe448516f45ee4da928b9dea.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2aeafbb2f3f83949ccc9b3d25b7e6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/010a23e50e07df3002fc679fccd191a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334781c7fe448516f45ee4da928b9dea.png)
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