1 . 设双曲线
,直线
与
交于
两点.
(1)求
的取值范围;
(2)已知
上存在异于
的
两点,使得
.
(i)当
时,求
到点
的距离(用含
的代数式表示);
(ii)当
时,记原点到直线
的距离为
,若直线
经过点
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bef93a53a2004910a8cac32f93c4b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)已知
![](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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8521b3f195753c88de1e2c12fbf310b2.png)
(i)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15a13b4190ac3d5feaee27a4c97b21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521f998124b18a71397ef9374a494aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(ii)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02108f31a77114bd68cf0477ea506d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
您最近一年使用:0次
2024-05-08更新
|
1143次组卷
|
2卷引用:浙江省杭州学军中学2024届高三下学期4月适应性测试数学试题
解题方法
2 . 已知双曲线
的离心率为
,其顶点到双曲线C的一条渐近线的距离为
.
(1)求双曲线C的标准方程:
(2)设
,
,D为AB的中点,作AB的平行线l交双曲线C于不同两点P,Q,直线
和
分别与双曲线C交于M,N两点,求证:M,N,D三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8f7e40ba386c0a9675896b52752d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
(1)求双曲线C的标准方程:
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3326927e4b01e981a19109633141e06a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
您最近一年使用:0次
3 . 平面直角坐标系
中,
为动点,
与直线
垂直,垂足
位于第一象限,
与直线
垂直,垂足
位于第四象限,
且
,记动点
的轨迹为
.
(1)求
的方程;
(2)已知点
,
,设点
与点
关于原点
对称,
的角平分线为直线
,过点
作
的垂线,垂足为
,交
于另一点
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f8660c00328e6a398de20d82846f963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd85a2db359624bf56acb372ea3c1fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61e15e2a1d984933f47d23327ed375a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88167966e441d533565130507f6d585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8547f2b4e89b0ae1445bda02d46f0668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e258dc5c8b4ea30bca80a56098065402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ef056105bb8c33072bb13858639162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5471ed6b678bdaa491d65e34f2ee782e.png)
您最近一年使用:0次
名校
解题方法
4 . 已知直线
与椭圆
交于点A,B,与x轴交于点C,与y轴交于点D.当直线l经过椭圆E的左顶点时,椭圆E两焦点到直线l的距离之比为
.
(1)求椭圆E的离心率;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e5828f63192614299baddc71f828a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b916dbb50387778f1ae83a2aded8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89f592fb2e4eba40eabf50d2c063927.png)
(1)求椭圆E的离心率;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04240283b1f69aefbee17c69915e8f1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45451b805ccefa04136ca815bff137c1.png)
您最近一年使用:0次
2022-10-23更新
|
922次组卷
|
2卷引用:黑龙江省齐齐哈尔部分学校2022-2023学年高三上学期10月月考数学试题
名校
解题方法
5 . 设椭圆E:
的右焦点为F,点A,B,P在椭圆E上,点M是线段AB的中点,点F是线段MP中点
(1)若M为坐标原点,且△ABP的面积为3,求直线AB的方程;
(2)求△ABP面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
(1)若M为坐标原点,且△ABP的面积为3,求直线AB的方程;
(2)求△ABP面积的最大值.
您最近一年使用:0次
解题方法
6 . 已知椭圆
,经过椭圆C的左焦点和上顶点的直线记为l,椭圆C的中心到直线l的距离等于
,且长轴长是焦距的2倍.
(1)求椭圆C的标准方程;
(2)设椭圆C的右焦点为F,已知直线
与椭圆C交于A,B两点,点N在x轴上,满足
,判断
是否为定值,如果是定值,求出该定值;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆C的标准方程;
(2)设椭圆C的右焦点为F,已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f4b2c0b7de8bdbae82c50ddb139f4a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82155b888a47137eea47992ff65cc61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3819ed22479a04b9270e3c759d6b014.png)
您最近一年使用:0次
2022-01-16更新
|
561次组卷
|
2卷引用:河南省濮阳市南乐县部分校2021-2022学年高三上学期模拟调研(四)数学(理)试题
解题方法
7 . 已知
,且函数
的图象在点
处的切线与直线
平行.
(1)求点P到直线l的距离;
(2)若任意
,都有
,求正整数n的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3fa5df64223ed53693e064ee48ce42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f6ed76662695d4c711be57a16c3197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c358111d34c86384fe5a248c9f2bde.png)
(1)求点P到直线l的距离;
(2)若任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0781803feb61fe06c88b04e06b875df5.png)
您最近一年使用:0次
名校
8 . 已知正方体
的棱长为
,
,
分别为
,
的中点,点
在平面
中,
,点
在线段
上,则下列结论正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/1089a844-035e-4639-83b7-d1162f49d6c0.png?resizew=164)
①点
的轨迹长度为
;
②线段
的轨迹与平面
的交线为圆弧;
③
的最小值为
;
④过
、
、
作正方体的截面,则该截面的周长为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fec63fe626342fc41fab8b85047b53e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655cc150ddc9deba2254780984d0024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d42170c7d4249f6b390823606c18c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcfe69b939fd1c271747fe9d37ccdf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ddf4d708c829ece5bef03f0d9517df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/1089a844-035e-4639-83b7-d1162f49d6c0.png?resizew=164)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
②线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2293f93791a597bf0162411f3395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10dd1672822a208909bc5714e6153870.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/798762d66a342849c22d12e98a149e5c.png)
④过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fec63fe626342fc41fab8b85047b53e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-03更新
|
2120次组卷
|
7卷引用:河南省实验中学2020-2021学年高三上学期模拟试卷数学(文科)试题
河南省实验中学2020-2021学年高三上学期模拟试卷数学(文科)试题(已下线)理科数学-2022年高考押题预测卷03(全国甲卷)(已下线)专题23 立体几何中的压轴小题-2(已下线)江西省上饶市2023届高三第一次高考模拟考试数学(理)试题变式题6-10(已下线)专题7-1 立体几何压轴小题:截面与球(讲+练)-2(已下线)专题14 立体几何常见压轴小题全归纳(练习)(已下线)第三章 空间轨迹问题 专题六 立体几何轨迹中的范围、最值问题 微点2 立体几何轨迹中的范围、最值问题综合训练【培优版】
9 . 如图,已知抛物线
的焦点为
,准线为
,过点
的直线交抛物线于
,
两点,点
在准线
上的投影为
,若
是抛物线上一点,且
.
![](https://img.xkw.com/dksih/QBM/2020/4/14/2440882175598592/2441210695991296/STEM/19d4e623-8068-4f86-95e4-f62dab55cf63.png?resizew=157)
(1)证明:直线
经过
的中点
;
(2)求
面积的最小值及此时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384ffba86ff08ce9e783d5d1bc51686.png)
![](https://img.xkw.com/dksih/QBM/2020/4/14/2440882175598592/2441210695991296/STEM/19d4e623-8068-4f86-95e4-f62dab55cf63.png?resizew=157)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
解题方法
10 . 已知
是椭圆
:
的左焦点,
,
是椭圆
上的两个相异动点,若
中点的横坐标为1,则
到直线
距离的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次