在极坐标系中,点
到直线
的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba076bd240c898fcb843ce1e33256d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37189d3b9bb58e8db37cb717931b46c.png)
更新时间:2016-12-04 07:25:48
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【推荐1】已知直线
(
为参数),圆
(极轴与
轴的非负半轴重合,且单位长度相同),若直线
被圆
截得弦长为2,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________
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【推荐2】在极坐标系中,极点到直线
的距离是________ .
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【推荐1】在极坐标系中,定点
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【推荐2】以平面直角坐标系的原点为极点,x轴的正半轴为极轴,建立极坐标系,并在两种坐标系中取相同的长度单位,则曲线
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