在直角坐标系中,以坐标原点为极点,
轴的非负半轴为极轴建立极坐标系.已知点
的极坐标为
,直线
的极坐标方程为
,且点
在直线
上.
(1)求
的值及直线
的直角坐标方程;
(2)圆
的极坐标方程为
,试判断直线
与圆
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1683aea7aeebcfd5a27c1890cf68ea58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9399c4838f7eaa4fd090800c77aac7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa4d9c24d72a82840e49ff13ef3e835.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
更新时间:2019-01-21 19:09:04
|
【知识点】 普通方程与极坐标方程的互化解读
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【推荐1】在极坐标系中,直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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您最近一年使用:0次
解答题-问答题
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较易
(0.85)
【推荐2】在直角坐标系
中,曲线C的参数方程为
(
为参数),以坐标原点O为极点,x轴的非负半箱为极轴建立极坐标系,点M的极坐标为
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(1)求点M的直角坐标和直线l的直角坐标方程;
(2)若N为曲线C上的动点,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5155682294d91dc2f384c2fc223e9c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25fb5317b989e2e4e912cd03fdba0880.png)
(1)求点M的直角坐标和直线l的直角坐标方程;
(2)若N为曲线C上的动点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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