1 . 已知点
在圆C:
上,点
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4945ae9388bd0fbdacb79caa9af22a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0d256036d52b784b8c68bfc8db69d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6938eeb65411eeac15e140cf1db99773.png)
A.直线![]() ![]() |
B.点![]() ![]() |
C.当![]() ![]() |
D.![]() |
您最近一年使用:0次
2 . 斜拉桥是桥梁建筑的一种形式,在桥梁平面上有多根拉索,所有拉索的合力方向与中央索塔一致.如图,一座斜拉桥共有10对拉索,在索塔两侧对称排列,已知拉索上端相邻两个锚的间距
均为4m,拉索下端相邻两个锚的间距
、
均为16m,最短拉索
满足
,
,若建立如图所示的平面直角坐标系,则最长拉索
所在直线的斜率为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/d32d315d-c143-4eef-9a6b-1f4bfac716b2.png?resizew=419)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2622b9c29b53520fedbedc027ad6729b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62db531f04c3b123c92c067c8195db4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ac2a47adf396cca2dff348be266c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68634c2c23d016c50668fbfc198e3dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01bf5fb24ac6fc1fdb94dbe074da6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc626bcf0b839ef9a59f1069acd3c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607493c6a110c74b6cee017151e67170.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/d32d315d-c143-4eef-9a6b-1f4bfac716b2.png?resizew=419)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知椭圆
的离心率为
,
、
是左、右焦点,
为椭圆的下顶点,连接
并延长交椭圆于点
,则直线
的斜率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
您最近一年使用:0次
解题方法
4 . 已知
的三个顶点
,
,
.
(1)求
边上中线
所在直线的方程;
(2)已知点
满足
,且点
在线段
的中垂线上,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eae019053ae564f08c01487f7ff7986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02af485e17e7628fd5a3ace6e0a32ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56949d0020ef52ab9e2ce39c8d992afa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e381acbbddb8a60dfac175402ea1202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解题方法
5 . 求下列条件确定的方程:
(1)已知圆M的圆心坐标为
,且与直线
相切,求圆M的方程;
(2)已知
的三个顶点为
D为BC的中点. 求BC边上的垂直平分线DE所在直线的方程.
(1)已知圆M的圆心坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4786edaf22bdc9d191becce18f836eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7691a78c7b2bb2f0a3ec82ce60a1cd09.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e5503261c7ae61986b0e428c73195c.png)
您最近一年使用:0次
名校
解题方法
6 . 已知等差数列
的前
项和为
,
是互不相同的正整数,且
,若在平面直角坐标系中有点
,则下列选项成立的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d55971449e78e767493f645dc693be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f1cefacc0165c52fe4e977c521c053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e276c3d0c8b46091ed7ab40228efd5af.png)
A.直线![]() ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-02-27更新
|
160次组卷
|
2卷引用:山东省菏泽市2023-2024学年高二上学期期末教学质量检测数学试题
7 . 已知点
,直线
过点
且与线段AB相交,则
与圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d58dddd36ac20e4d566f5886315bd5b.png)
的位置关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e5d94b2a1aa8abeff1d2dbb1d204ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec32b9cfee142d1d4f68ab4771de77c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d58dddd36ac20e4d566f5886315bd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc875a62a6f0ddd1d1c1c0c2473c60b6.png)
A.相交 | B.相离 | C.相交或相切 | D.相切或相离 |
您最近一年使用:0次
名校
解题方法
8 . 已知在平面直角坐标系
中,已知
的三个顶点为
,
,
,求:
(1)
所在直线的方程;
(2)
边上的高
所在直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a6be776cdd229e5c1339265b23624a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e5c320d78ef38e330176c335cc58e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01e555bf9cbc0a88f92dbf05166add2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
9 . 已知直线
过点
且与线段
的延长线有公共点,若
,
,则直线
的斜率的取值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a42451bdbef6c82dbaf8e06f0614794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd162f6b5ea3023b9126daf61e76428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.0 | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 已知椭圆
的左、右焦点分别为
,左、右顶点分别为
,过右焦点
的直线与椭圆
相交于
(异于
)两点.
(1)若直线
的斜率为1,求
;
(2)若直线
与直线
相交于点
,求证:
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb40dae2b0f4048d3fabff25e6cbe443.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbea07b8fc4de36aed1fd3096308c04e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c238df257e259fd92de5c49a463e73.png)
您最近一年使用:0次