名校
解题方法
1 . 平面内一动点
到定直线
的距离,是它与定点
的距离的两倍.
(1)求点
的轨迹方程
;
(2)过
点作两条互相垂直的直线
,
(直线
不与
轴垂直).其中,直线
交曲线
于
,
两点,直线
交曲线
于
,
两点,直线
与直线
交于点
,若直线
,
,
的斜率
,
,
构成等差数列,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b0b7dc61346c291554562762fd0558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f998f87124daa3d26643725676b15c97.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce619c464f2aa04178ea0111ba60544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d9ccc4246c82939d8a659db9f28a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce619c464f2aa04178ea0111ba60544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce619c464f2aa04178ea0111ba60544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d9ccc4246c82939d8a659db9f28a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9eeee83b4b7c6ceac7828ff534ce15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d9ccc4246c82939d8a659db9f28a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5d04fbdee890603b0b3621037f3c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a28be4d5a16cf245f6fa7c4088fee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd6a1d6fab318824426e52464a575e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44368a1c81e2bb3608b412ac0c44f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546a035918f025942ca99b9ffebd8eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
您最近一年使用:0次
2022-10-20更新
|
697次组卷
|
4卷引用:贵州省六校联盟2023届高三上学期高考实用性联考(一)数学(理)试题
贵州省六校联盟2023届高三上学期高考实用性联考(一)数学(理)试题贵州省六校联盟2023届高三上学期高考实用性联考(一)数学(文)试题内蒙古自治区赤峰市赤峰二中2022-2023学年高三上学期第二次月考理科月考数学试题(已下线)专题32 一类与斜率和、差、商、积问题的探究-1
名校
解题方法
2 . 如图,M,N分别在x轴、y轴上运动,
点P满足
点P的轨迹为曲线C.
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992893435928576/2996195895672832/STEM/2716a399-d80a-49f1-9bc7-2c1d3ac45555.png?resizew=192)
(1)求曲线C的方程;
(2)直线
与曲线C交于A,B两点,C,D在曲线C上,
,求四边形ACBD面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/577e89961e0d68d363933aed2a886992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3624abfa5fac7e0afb9b2fdf0c76aebf.png)
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992893435928576/2996195895672832/STEM/2716a399-d80a-49f1-9bc7-2c1d3ac45555.png?resizew=192)
(1)求曲线C的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabfd32465e9e50409413d9c1358279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b600f4b41aa26fcdcd55ad32d5514a.png)
您最近一年使用:0次
2022-06-07更新
|
1379次组卷
|
3卷引用:贵阳第一中学2022届5月高三高考适应性月考卷(八)数学(文)试题
解题方法
3 . 已知直线
,M为平面内一动点,过M作l的垂线,垂足为N,且
(O为坐标原点),动点M的轨迹记为
.
(1)证明
为抛物线,并指出它的焦点坐标.
(2)已知
,直线
与
交于A,B两点,直线
与
的另一交点分别是C,D,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a520beb0ae215a01f9de68d10d44d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2abe13e2d4176f55f71677bbbb6eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22840186db0afc0e2b2e8915ce79b998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71772103e821b6c2072643fedc867dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
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