名校
1 . 已知直线
经过直线
与直线
的交点
,且与直线
垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2bfc16dcee7cce1f225292f30dac2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b6f4a42bfbcd5dac0d5bc973b49b94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26183c319e4d05be1f68973eab3b49ec.png)
(1)求直线的方程;
(2)若直线与圆
相交于
两点,且
,求
的值.
您最近一年使用:0次
2017-07-07更新
|
1061次组卷
|
5卷引用:四川省资阳市2016-2017学年高一下学期期末考试数学试题
名校
2 . 已知直线
与圆
相交于
两点,则
等于_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3497af3942a788b64c6b91b62a8dbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071b061e9dd9b9ee83639c66d7422335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf080151880efcf63e95ee17a78ba1e.png)
您最近一年使用:0次
名校
3 . 对任意的实数
,直线
与圆
的位置关系一定是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
A.相离 | B.相切 | C.相交 | D.不确定 |
您最近一年使用:0次
2017-06-20更新
|
596次组卷
|
2卷引用:四川省双流中学2016-2017学年高一下学期6月月考数学试题
4 . 在平面直角坐标系
中,设直线
与圆
(
)交于
两点,
为坐标原点,若圆上一点
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501a6d50c937729c8d0f02b2b62a0ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3503d330608e7138d1b529aba4512fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ba6b6aa6c3f9faba6b03bc193a6e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11853adca7f523ef2f376809b2988471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258e40e3883271c3580c1d3c805dcac6.png)
A.![]() | B.2 | C.![]() | D.![]() |
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名校
解题方法
5 . 定义在
上的偶函数
满足
,当
时,
,若直线
(
)的图象有且仅有三个支点,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e04b4cd16224102ef696222caa56ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b4163b626b28fdefa38cbda9f73b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816d1f63b737faba12ab856d7e5dc885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-04更新
|
473次组卷
|
2卷引用:四川省成都市石室中学2016-2017学年高一下学期半期考试数学试题
6 . (注意:在试题卷上作答无效)
在平面直角坐标系
中,已知直线
与圆心在第二象限的圆
相切于原点
,且圆
与圆![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/d50692d3b14c4950baec47da47a36900.png)
的面积相等.
求圆
的标准方程;
试探究圆
上是否存在异于原点的点
,使点
到定点
的距离等于线段
的长?若存在,求出点
的坐标;若不存在,请说明理由.
在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/04290b8c0a2d4d3f85345efad2b156bb.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/f720118fe5154741b7125a2c3f6b5389.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/04290b8c0a2d4d3f85345efad2b156bb.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/d50692d3b14c4950baec47da47a36900.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/1e36d92bb3ef496796cbc95c6fe644f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2342f64449927ccacfb945034d39389.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/04290b8c0a2d4d3f85345efad2b156bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a490119734a6399dbcb8998974e28eba.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/04290b8c0a2d4d3f85345efad2b156bb.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/bb147c0e190a4180b2565d4fa1ac250f.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/bb147c0e190a4180b2565d4fa1ac250f.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/80fb6dcaedcd479ba9d86af57b12009b.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/02cbf0f7e1e04e8ba9158aff37adfe57.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319383240704/STEM/bb147c0e190a4180b2565d4fa1ac250f.png)
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解题方法
7 . 若直线
(其中
且
)平分圆
的周长,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d473707f01512369d6566bab0103149d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76a839be8dbe166816e73bb5bc32652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57f879f6e8df7d5fb261328806260b3.png)
A.16 | B.8 | C.4 | D.2 |
您最近一年使用:0次
8 . 圆
被直线
截得的弦长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e3950a787219d6c23351af4d50a43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f48ad3582475d30aa0a272e48c6494c.png)
A.3 | B.4 | C.6 | D.8 |
您最近一年使用:0次
9 . 在平面直角坐标系xOy中,圆C 的方程为
,若直线
上至少存在一点,使得以该点为圆心,半径为1的圆与圆C 有公共点,则k的最小值是
![](https://img.xkw.com/dksih/QBM/2015/7/21/1572189754834944/1572189760593920/STEM/8e9e4a7584944daa868d60f797498615.png)
![](https://img.xkw.com/dksih/QBM/2015/7/21/1572189754834944/1572189760593920/STEM/96bb009682354dbbbcc11b9e6d36ea44.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 在x轴、y轴上截距相等且与圆
相切的直线L共有条
![](https://img.xkw.com/dksih/QBM/2015/7/21/1572189754834944/1572189760569344/STEM/76c5c923d3f5496ba37cd3f31129d069.png)
A.2 | B.3 | C.4 | D.6 |
您最近一年使用:0次