1 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d37ba212e5122d0fd1d25dda67f0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45b4665d35920b7af8f78e86d9cd85f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e970bb8905907745672b55f43f35c047.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
,
.
(1)若不等式
对任意
,
恒成立,求实数
的取值范围;
(2)对于
,求函数
在
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19235af93513ae52117810409db6b8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12724c29358aa4ab11a2269072d6bc4f.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aad29a5dea066766fa0ba45bacb5829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e135a02718e057f697cff737853c564f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbfd726516bbd901771a5482cce35301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
您最近一年使用:0次
2022-11-29更新
|
1310次组卷
|
3卷引用:江苏省淮安市淮阴中学2022-2023学年高一上学期期中数学试题
江苏省淮安市淮阴中学2022-2023学年高一上学期期中数学试题(已下线)第二篇 函数与导数专题5 切比雪夫、帕德逼近 微点4 切比雪夫逼近与帕德逼近综合训练浙江省嘉兴市第一中学2023-2024学年高一上学期10月月考数学试题
3 . 以下四个命题表述正确的是( )
A.圆![]() ![]() ![]() |
B.圆![]() ![]() |
C.具有公共焦点![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.已知圆![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2022-11-18更新
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1308次组卷
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7卷引用:江苏省扬州市仪征中学2022-2023学年高二上学期期中数学试题
4 . 已知抛物线
的焦点与椭圆
的右焦点
重合,椭圆
的短轴长为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/db796c73-9fe2-4363-a55d-fe74f5e68e21.png?resizew=151)
(1)求椭圆
的方程;
(2)过点
且斜率为
的直线
交椭圆
于
两点,交抛物线
于
两点,请问是否存在实常数
,使
为定值?若存在,求出
的值及定值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a5ece40544f0dbe0ddd07400f5295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/db796c73-9fe2-4363-a55d-fe74f5e68e21.png?resizew=151)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8beef5e9a59a6e83f5cff1cd0ab70a60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2022-11-18更新
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1235次组卷
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4卷引用:江苏省扬州市仪征中学2022-2023学年高二上学期期中数学试题
名校
5 . 已知定义域为R的奇函数
,当
时,
,下列叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce7e8e2640e8e86c9db6bfa93bb4597.png)
A.存在实数k,使关于x的方程![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.若关于x的方程![]() ![]() ![]() |
您最近一年使用:0次
2022-11-17更新
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2339次组卷
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7卷引用:江苏省南通市海安高级中学2022-2023学年高一上学期11月期中数学试题
6 . 已知双曲线C:
的左焦点为F,过点F作直线l交C的左支于A,B两点.
(1)若
,求l的方程;
(2)若点
,直线AP交直线
于点Q.设直线QA,QB的斜率分别
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ca1b693159b7ade34ab038d76ad09.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37eac93736b605958ab6834b255dfa8b.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a789526b5dbf97449e2290e21a7aa48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](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/82b0aeee86644df4cd2f02f38e0535ec.png)
您最近一年使用:0次
2022-11-16更新
|
1618次组卷
|
6卷引用:江苏省南通市通州区2022-2023学年高三上学期期中数学试题
名校
解题方法
7 . 已知双曲线
为右焦点.
(1)求双曲线
的渐近线方程及两条渐近线所夹的锐角;
(2)当
时,设过点
的直线
与双曲线
交于点
,且
的面积为
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380e7e09dc9f200a4ce643774728fb8a.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fddca36a04a90bd2127a23148241a408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e203b7c9a6600e0272c58a23733490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfb02e157819a2bdd0f2790cbc825e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1714dbcd86abd2c3687591eb25c49a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-11-13更新
|
707次组卷
|
3卷引用:江苏省泰州市兴化市2022-2023学年高二上学期期中数学试题
名校
解题方法
8 . 已知椭圆
的左、右焦点为
,且
,点
为椭圆
上一点,满足
的周长等于12.
(1)求椭圆
的方程;
(2)过点
作
轴的垂线(不过点
)交椭圆
于点
,连接
延长交椭圆于点
,连接
,试判断直线
是否过定点,如果过定点,求出定点坐标;如果不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4f7e7f33963df24d6a46067b4677e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3171b3d11c6f4619e189677345357508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3171b3d11c6f4619e189677345357508.png)
您最近一年使用:0次
2022-11-13更新
|
545次组卷
|
3卷引用:江苏省泰州市兴化市2022-2023学年高二上学期期中数学试题
江苏省泰州市兴化市2022-2023学年高二上学期期中数学试题(已下线)专题10 圆锥曲线综合大题10种题型归类-【寒假分层作业】2024年高二数学寒假培优练(人教A版2019选择性必修第一册)广东省珠海市第一中学2024届高三上学期大湾区期末预测数学试题(一)
解题方法
9 . 已知双曲线
的离心率为2,左、右顶点分别为
,
,且它们到渐近线的距离为
.
(1)求
的方程;
(2)设点
,
在
的右支上,直线
,
在
轴上的截距之比为
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.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/860884c0017c8bceb5b0edff796c144f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5881f1ce9b4172ca346032d0fd1e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
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解题方法
10 . 在
中,
,
,
,M是BC的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ca48cd27d4bf9d9ef084b558fc17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/519d3cbe962154438e43a23b0d9eda2f.png)
A.线段AM的长度为![]() |
B.![]() |
C.![]() |
D.在线段AB的延长线上存在点P,使得![]() ![]() |
您最近一年使用:0次
2022-11-10更新
|
1149次组卷
|
3卷引用:江苏省南通市海门市2022-2023学年高三上学期期中数学试题