名校
解题方法
1 . 在平行四边形ABCD中,
,
,
,点E是线段BC的中点.
(1)求直线CD的方程;
(2)求过点A且与直线DE垂直的直线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99ce0fdd3a34df8d5e913b7b9f6f3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6868a51ea0a78f2605d3d1cbe701351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4561f7256a690dabf693f6aac03185b0.png)
(1)求直线CD的方程;
(2)求过点A且与直线DE垂直的直线.
您最近一年使用:0次
2022-10-13更新
|
688次组卷
|
6卷引用:黑龙江省齐齐哈尔市三立高级中学2022-2023学年高二上学期期中考试数学试题
名校
2 . 数y=x2+ax+b的图象与坐标轴交于三个不同的点A、B、C,已知△ABC的外心在直线y=x上,求a+b的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/819b5871-11e6-4a80-8308-8553ea8af793.png?resizew=189)
您最近一年使用:0次
3 .
中,
,
边上的高
所在直线的方程为
,
边上的中线
所在直线的方程为
.
(1)求直线
的方程;
(2)求直线
的方程;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a2b8b43e1fe82fc439d145e91b860c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e35701dd16dbf6ec916064880b8b52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc523f751a40a21dece5645b15af9a8.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2018-08-19更新
|
886次组卷
|
2卷引用:黑龙江省绥化市肇东市第四中学校2022-2023学年高二上学期期末数学试题
名校
4 . 如图,在矩形
中,
四边形
为边长为
的正方形,现将矩形
沿过点
的动直线
翻折,使翻折后的点
在平面
上的射影
落在直线
上,若点
在折痕
上射影为
,则
的最小值为
![](https://img.xkw.com/dksih/QBM/2017/3/7/1638776523522048/1640230428131328/STEM/fda52418-2cdf-4f4d-8dec-6794d6781e7e.png?resizew=374)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a16f181c1ce14c245a876e57b82460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f4d533f97d8003a1ba9afbe7ff2aef.png)
![](https://img.xkw.com/dksih/QBM/2017/3/7/1638776523522048/1640230428131328/STEM/fda52418-2cdf-4f4d-8dec-6794d6781e7e.png?resizew=374)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-03-09更新
|
1580次组卷
|
4卷引用:黑龙江省哈尔滨师范大学附属中学2017-2018学年高二10月月考数学(理)试题