名校
解题方法
1 . 已知直线
,点
,圆
经过
两点,且圆心在直线
上.
(1)求圆
的标准方程;
(2)若
为圆
上的动点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa3227349546a6cc56ab8a3c3ee3057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7a220da838099cc502389bf0babb0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972333e7be779fe63d6bdc1d80b41a50.png)
您最近一年使用:0次
2023-11-09更新
|
241次组卷
|
2卷引用:江苏省淮安市2023-2024学年高二上学期11月期中数学试题
2023·江苏淮安·模拟预测
2 . 在
中,设点
,利用二次函数知识可确定出到
的3个顶点距离的平方和最小的点为
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87afac9672e63b50945a8a399b2d022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.重心 | B.垂心 | C.外心 | D.内心 |
您最近一年使用:0次
解题方法
3 . 已知三角形
的顶点坐标为
、
、
,
是
边上的中点.
(1)求
边所在的直线方程;
(2)求中线
的长;
(3)求
边的高所在直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8796f6d3e7a0e3771f83df47e99a970d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7bbd15ddf2ac840cc08ad8492a0164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02eea25799267c0a948a6a9ffab2ffd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求中线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
4 . 设
,过定点
的动直线
和过定点
的动直线
交于点
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aca3272c91ba9773f1c8342cdfdc432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63aa660686c9d384e3853b367962b4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c1a099b4673fe2ae0f084beae1d0b2.png)
A.5 | B.10 | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 设点A(2,0)和B(4,3),在直线
上找一点P,使|PA|+|PB|的取值最小,则这个最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0d97025b05cefc1a0d722b89d78787.png)
您最近一年使用:0次
名校
解题方法
6 . (1)设直线l过点(2,3)且与直线2x+y+1=0垂直,l与x轴,y轴分别交于A、B两点,求|AB|;
(2)求过点A(4,-1)且在x轴和y轴上的截距相等的直线l的方程.
(2)求过点A(4,-1)且在x轴和y轴上的截距相等的直线l的方程.
您最近一年使用:0次
2020-02-11更新
|
542次组卷
|
2卷引用:江苏省淮安市清江中学2019-2020学年高一下学期期中数学试题