名校
解题方法
1 . 已知椭圆
的两个顶点
,且其离心率为
.
(1)求椭圆Γ的方程;
(2)设过椭圆Γ的右焦点F的直线与其相交于A,B两点,若
(O为坐标原点),求直线AB的方程;
(3)设R为椭圆Γ上的一个异于M,N的动点,直线MR,NR分别与直线
相交于点P,Q,试求|PQ|的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e31f17d3eae2f76500ee2e8f955865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18d5eb40de11f974b58f63cb0a8a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆Γ的方程;
(2)设过椭圆Γ的右焦点F的直线与其相交于A,B两点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
(3)设R为椭圆Γ上的一个异于M,N的动点,直线MR,NR分别与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6280959e386eed67ce5d6f8da5dcdc.png)
您最近一年使用:0次
2023-03-26更新
|
328次组卷
|
4卷引用:上海市虹口区2021-2022学年高二下学期期末在线测试数学试题
上海市虹口区2021-2022学年高二下学期期末在线测试数学试题(已下线)核心考点04抛物线、曲线与方程(2)(已下线)重难点03圆锥曲线综合七种问题解题方法-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)辽宁省六校协作体2023-2024学年高二上学期12月联考数学试题
名校
2 . 如图,在三棱柱
中,底面ABC是以AC为斜边的等腰直角三角形,侧面
为菱形,点
在底面上的投影为AC的中点D,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/20/453d1950-317a-4dd3-8175-4fde1a3d3ca0.png?resizew=183)
(1)若M、N分别为棱AB、
的中点,求证:
;
(2)求点C到侧面
的距离;
(3)在线段
上是否存在点E,使得直线DE与侧面
所成角的正弦值为
?若存在,请求出
的长;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/20/453d1950-317a-4dd3-8175-4fde1a3d3ca0.png?resizew=183)
(1)若M、N分别为棱AB、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4169667e0dd7c8b5824295177edb1b.png)
(2)求点C到侧面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(3)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27511b095e8e96719af8bc9a7412ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
您最近一年使用:0次
2023-01-15更新
|
1965次组卷
|
4卷引用:上海市华东师范大学第一附属中学2022-2023学年高二上学期期末数学试题
上海市华东师范大学第一附属中学2022-2023学年高二上学期期末数学试题(已下线)专题6 第3讲 立体几何中的向量方法(已下线)期末真题必刷基础60题(35个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)(已下线)第02讲:空间向量与立体几何交汇(必刷6大考题+7大题型)-2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019选择性必修第一册)
解题方法
3 . 已知椭圆
的左、右焦点分别为
,直线l的斜率为k,在y轴上的截距为m.
(1)设
,若
的焦距为2,l过点
,求l的方程;
(2)设
,若
是
上的一点,且
,l与
交于不同的两点A、B,Q为
的上顶点,求
面积的最大值;
(3)设
是l的一个法向量,M是l上一点,对于坐标平面内的定点N,定义
.用a、b、k、m表示
,并利用
与
的大小关系,提出一个关于l与
位置关系的真命题,给出该命题的证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c118b51ab426bc1c1b56179094f146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a7a78a0cb55d2396f7213432a86b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662ad7f6a6c6a3d97ebdc5017b17fe8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a1cee4fed65dd5d20c089810266653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0970b6eed4ca40fa4ecfbed448615cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0970b6eed4ca40fa4ecfbed448615cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a881309775c3b6a9f4ed408838666342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
您最近一年使用:0次
2022-11-25更新
|
677次组卷
|
5卷引用:上海市虹口区2023届高三上学期11月适应性测试数学试题
上海市虹口区2023届高三上学期11月适应性测试数学试题上海海洋大学附属大团高级中学2023届高三上学期12月月考数学试题(已下线)高二下期中真题精选(易错46题专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)(已下线)专题22 新高考新题型第19题新定义压轴解答题归纳(9大题型)(练习)(已下线)大招4 圆锥曲线创新问题的速破策略
名校
解题方法
4 . 已知椭圆
和双曲线
.
、
分别为
和
的离心率.
(1)若
,求
的渐近线方程;
(2)若
,过椭圆
的左焦点
作斜率为
的直线与
交于不同两点
、
,过原点作
的垂线,垂足为
.若点
恰好是
与
的中点,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca5a95b0a6c43bb6fd7bd97678a29cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929a4134e00217002f39b40e348725f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a55f0227a3e9f26ebdfe7c59b8d903e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2022-10-29更新
|
564次组卷
|
3卷引用:上海外国语大学附属中学2023届高三上学期9月月考数学试题
名校
解题方法
5 . 如图,已知椭圆G:
的、右两个焦点分别为
、
,设
,
,
,若
为正三角形且周长为6.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/d5f05e54-4c28-4b8b-a73e-7e7a2e8d7374.png?resizew=245)
(1)求椭圆G的标准方程;
(2)若过点
且斜率为
的直线与椭圆G相交于不同的两点M、N两点,是否存在实数k使
成立,若存在,求出k的值;若不存在,请说明理由;
(3)若过点
的直线与椭圆G相交于不同的两点M、N两点,记△PMQ、△PNQ的面积记为
、
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/578faa3e92d60d4741a360898e46ce61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bd1719b893f8f64ba2d07e65980b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/025b3e8eb822ee102ac3f61acf646792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/d5f05e54-4c28-4b8b-a73e-7e7a2e8d7374.png?resizew=245)
(1)求椭圆G的标准方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47fb0787422cd572ae13bd0881b6f57a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f544630ecf137a829e34d67be06dbc.png)
(3)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
2022-10-27更新
|
963次组卷
|
4卷引用:上海市华东师范大学第一附属中学2023届高三上学期开学考试数学试题
名校
解题方法
6 . 已知集合
,
,其中
.
(1)当
时,求集合A,B;
(2)问:
是
的什么条件?并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480a320ae2f16e2dc7b2663e485f1e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b97e9b570994b69b565f2eff474ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44aca6c00903b9dd306287ba3bb91035.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(2)问:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c67a7e28dba059006021a2e2105f538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
您最近一年使用:0次
名校
解题方法
7 . 已知椭圆
:
的左焦点为
,下顶点为
,斜率为
的直线
经过点
.
(1)若
与直线
垂直,求
的方程;
(2)若直线
与椭圆
相交于不同的
,
,直线
,
分别与直线
交于
,
且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c763113a1fc48e8acc83787b8cd24eec.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/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bab45799f9f8d0374f529e8b30a0b27.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若直线
![](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/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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92002afa0b414eae387a91207c629398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9237fc519ad0805fe8c41f4878c4ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
8 . 已知焦点在
轴上,中心在坐标原点的椭圆
的离心率为
,且过点
.直线
与圆
(其中
)相切于点A.
(1)求椭圆
的方程;
(2)若
,直线
与椭圆交于
两点,求
的最大值;
(3)若直线与椭圆
有且只有一个交点,且交点为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb74e36139c6de8ff68bc99ff37e31e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1ef9c1878fded0b37b1f91b188c3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17938038e9ddf23df5a690b16be752ef.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ed8e62889b754cf55b6a56ccb9a4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa69fd8445d01c98634c2e885b47d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a983aae27f2b9b80b172a29f5a293d.png)
(3)若直线与椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
解题方法
9 . 已知抛物线
的焦点为F,
,过F作直线l交抛物线C于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/40ada882-d734-495e-9f67-ffde28914b7e.png?resizew=115)
(1)若直线l的斜率为1,求线段AB的中点坐标;
(2)设直线PA,PB的斜率分别为
,
,求证:
是定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe413b12ffabfb252121aa2eaa31017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/40ada882-d734-495e-9f67-ffde28914b7e.png?resizew=115)
(1)若直线l的斜率为1,求线段AB的中点坐标;
(2)设直线PA,PB的斜率分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9626bd07f966ea26a51dcd8ceba04ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf32f4d595c02a8c0f7cc5f8fd0c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a21aeba33d757f66b2f1532829a425.png)
您最近一年使用:0次
解题方法
10 . 如图,在四棱柱
中,底面
为菱形,
平面
,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/68cda290-f5f7-4e7f-b072-69a3bef0776f.png?resizew=205)
(1)求点
到平面
的距离;
(2)①求二面角
大小.
②求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/68cda290-f5f7-4e7f-b072-69a3bef0776f.png?resizew=205)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
(2)①求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef30620deef1165d60bd5d0dade9145.png)
②求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
您最近一年使用:0次