如图,直线
过原点,且与半圆
交于
两点.若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b26e242f27f19028b25393ea9c45ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a11418663e9f9d5d6026fcbbce3120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/bfe4a0f9-e909-4c26-ade7-5bd927b2ad6e.png?resizew=169)
18-19高一·全国·课后作业 查看更多[1]
更新时间:2019-10-11 19:21:06
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【知识点】 由直线与圆的位置关系求参数
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知
“直线
与圆
相交”;
“
有一正根和一负根”.
(1)若
为真,求
的范围;
(2)若
为真,
为真,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40897db190d657aa67e62a3bc0a49331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e383fcc122f267043fbafe0972bfb900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac185ecf70e8175b1b74f13800325a3b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】已知过点
,且斜率为
的直线
与圆
:
相交于M、N两点.
(1)求实数k的取值范围;
(2)求证:
定值;
(3)若O为坐标原点,且
,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a2b8b43e1fe82fc439d145e91b860c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7acd2faeb5513785c3169d6b29dd1d.png)
(1)求实数k的取值范围;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78170b518fd01b19eb05667caaf89101.png)
(3)若O为坐标原点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b491f3e84390cd4c412aefeaae6e0ac8.png)
您最近一年使用:0次