1 . 已知椭圆
:
(
)与双曲线
:
(
)共焦点
,
,过
引直线
与双曲线左、右两支分别交于点
,
,过
作
,垂足为
,且
(
为坐标原点),若
,则
与
的离心率之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0040a720a545dba8a9f7b6a725f644ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e9e7d734e2f0263b7586aa460983d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7593af26ecdc7ace1a766cff2d9c4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6232dc74b15e4acb0ac3482a1cbe6a52.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add5a0c3d79985e90d92c17a11373fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5038ca8098994dcc635e669b6a158d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0854b1fa6d0d9fc6e0c5766f3903532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 已知函数
,若存在实数
,使函数
有两个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9554ad511d6e8b9bf180ca640ed3a1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3ef13a9e7d44e9b4bd98510570da56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-01-23更新
|
101次组卷
|
3卷引用:贵州省遵义市2023-2024学年高二上学期1月期末质量监测数学试题
贵州省遵义市2023-2024学年高二上学期1月期末质量监测数学试题河南省郑州市宇华实验学校2023-2024学年高二下学期开学摸底考试数学试题(已下线)专题07函数期末8种常考题型归类【好题汇编】-备战2023-2024学年高二数学下学期期末真题分类汇编(人教B版2019)
名校
解题方法
3 . 已知椭圆
:
的左右焦点分别为
,
,过
的直线交椭圆
于A,B两点,若
,点
满足
,且
,则椭圆C的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d721883ffd9a2c61ed89a5790ba205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b9697334ff5784b8fa778c7aa59c35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620963ebd61d6f8da4875c2a23d07dbd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-22更新
|
2028次组卷
|
10卷引用:贵州省铜仁第一中学2023-2024学年高二下学期2月开学适应性模拟检测数学试题
贵州省铜仁第一中学2023-2024学年高二下学期2月开学适应性模拟检测数学试题广东省广州市五校联考2023-2024学年高二上学期期末联考数学试卷江西省南昌市第二中学2024届高三“九省联考”考后适应性测试数学试题(三)四川省绵阳市南山中学2024届高三下学期入学考试数学(理)试题(已下线)黄金卷01(2024新题型)(已下线)题型23 6类圆锥曲线离心率问题解题技巧四川省达州外国语学校2023-2024学年高二下学期3月月考数学试题河南省信阳市新县高级中学2024届高三考前第六次适应性考试数学试题(已下线)专题7 圆锥曲线与定比分点法【练】(压轴小题大全)湖南省株洲市第二中学2021-2022学年高二上学期第三次月考数学试卷
4 . 已知椭圆C:
的离心率为
,左、右顶点分别为A、B,过点
的直线与椭圆相交于不同的两点P、Q(异于A、B),且
.
(1)求椭圆C的方程;
(2)若直线AP、QB的斜率分别为
、
,且
,求
的值;
(3)设
和
的面积分别为
、
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d195911a91d12edd5685f6cd963fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dddd06a88839dc33edcea74128743ae.png)
(1)求椭圆C的方程;
(2)若直线AP、QB的斜率分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34bc0ee0a95fab04edf648026f14b9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a551505ae42b49904bab59b17012d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c9c5ae63072e1684cf1c242c8133d8a.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/c59c4295f918205f5598ecc9a96d8867.png)
您最近一年使用:0次
2024-01-19更新
|
397次组卷
|
4卷引用:贵州省铜仁第一中学2023-2024学年高二下学期2月开学适应性模拟检测数学试题
5 . 已知
为坐标原点,
是椭圆
的右焦点,
与
交于
两点,
分别为
的中点,若
,则
的离心率可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1567d8f98fabc1a3948f8602cc5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad57e3727b7bbd795b05332fbf9649e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9eec5d2a64563c9f8954532e0298a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-18更新
|
142次组卷
|
2卷引用:贵州省黔东南州2023-2024学年高二上学期期末检测数学试题
6 . 已知
,直线
为
上的动点.过点
作
的切线
,切点分别为
,当
最小时,点
的坐标为__________ ,直线
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7516825c36fe07c9350da42efda17e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eda5b56749384035dff39db6dd30482.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/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9ce08214287236b3eb3f490a15e28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2024-01-17更新
|
299次组卷
|
6卷引用:贵州省黔东南州2023-2024学年高二上学期期末检测数学试题
贵州省黔东南州2023-2024学年高二上学期期末检测数学试题辽宁省县级重点高中协作体2023-2024学年高二上学期期末数学试题河南省南阳地区2023-2024学年高二上学期期末热身摸底联考数学试题湖南省张家界市民族中学2023-2024学年高二下学期入学考试数学试题(已下线)专题1 直线与圆的位置关系【练】(压轴小题大全)(已下线)专题2 与圆有关的最值问题【讲】(压轴小题大全)
名校
解题方法
7 . 已知抛物线
的焦点
到双曲线
的渐近线的距离为
.
(1)求抛物线
的方程;
(2)过点
任意作互相垂直的两条直线
,
分别交曲线
于点A,B和M,N.设线段
,
的中点分别为P,Q,求证:直线
恒过一个定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2024-01-16更新
|
1338次组卷
|
5卷引用:贵州省部分重点中学2024届高三上学期模拟数学试题
贵州省部分重点中学2024届高三上学期模拟数学试题广东省广州市第六中学2024届高三第三次调研数学试题(已下线)高考数学冲刺押题卷03(2024新题型)(已下线)题型24 5类圆锥曲线大题综合解题技巧(已下线)专题8.4 抛物线综合【八大题型】
名校
解题方法
8 . 如图所示,在圆锥内放入两个球
,它们都与圆锥相切(即与圆锥的每条母线相切,切点圆分别为
.这两个球都与平面
相切,切点分别为
,丹德林(G.Dandelin)利用这个模型证明了平面
与圆锥侧面的交线为椭圆,
为此椭圆的两个焦点,这两个球也称为G.Dandelin双球.若圆锥的母线与它的轴的夹角为
,
的半径分别为2,5,点
为
上的一个定点,点
为椭圆上的一个动点,则从点
沿圆锥表面到达
的路线长与线段
的长之和的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d096cd7bd8a5a2219fd7dd166bbb8460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9980316b84e2702c4c40eaca97afe3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9980316b84e2702c4c40eaca97afe3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f7ba050bb69ab55bdcb96f935f5922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/d28f4c2a-003e-4091-adb4-62f09a977bf2.png?resizew=128)
您最近一年使用:0次
2024-01-16更新
|
521次组卷
|
2卷引用:贵州省铜仁第一中学2023-2024学年高二下学期2月开学适应性模拟检测数学试题
名校
解题方法
9 . 如图,在棱长为1的正方体
中,点
在侧面
内运动(包括边界),
为棱
中点,则下列说法正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/35172246-ad30-4a32-96f3-aec18508fac1.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253ffd3fc633d861810ee2e872188b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/35172246-ad30-4a32-96f3-aec18508fac1.png?resizew=165)
A.存在点![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2024-01-03更新
|
1441次组卷
|
6卷引用:贵州省铜仁第一中学2023-2024学年高二下学期2月开学适应性模拟检测数学试题
贵州省铜仁第一中学2023-2024学年高二下学期2月开学适应性模拟检测数学试题重庆市南开中学校2024届高三上学期第五次质量检测数学试题重庆市沙坪坝区南开中学校2024届高三上学期第五次质量检测数学试题江苏省扬州市扬州中学2024届高三上学期1月阶段性检测数学试题辽宁省沈阳市、大连市2023-2024学年高二上学期教学联盟大联考数学试题(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1 立体几何轨迹中的范围、最值问题【培优版】
10 . 已知函数
.
(1)讨论
的单调性;
(2)当
,
时,函数
的图象与函数
的图象有两个交点
,
.
①求证:
;
②比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5370fc919246e31862b908b13975e4f9.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881e1aef1f22f19862b3a0b09cf64efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed98e5fc99b56a2766f5c9b411253d6.png)
②比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a4f3dd93a37f788d565fc7ace0fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
您最近一年使用:0次