名校
解题方法
1 . 正方体
的棱长为
为该正方体侧面
内的动点(含边界),若
分别与直线
所成角的正切值之和为
,则四棱锥
的体积的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc79c14b2ed75664547ddd8ba5b1be9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c52091eb745de866044477641a7c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2024-06-11更新
|
246次组卷
|
2卷引用:江西省萍乡市2024届高三二模考试数学试卷
解题方法
2 . 已知函数
.
(1)证明:当
时,
恒成立;
(2)首项为
的数列
满足:当
时,有
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a930f36a63e67ba5ce2ab3b8320c7eb0.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9518d59e737e3ac698165c5ec17ba636.png)
(2)首项为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbaae3509b29f0bc77e8687702b7484d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b242016eaeac01ac3d573fa1932a3910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4138f481d09d1d1fc962d5a90245a7.png)
您最近一年使用:0次
名校
解题方法
3 . 把符号
称为二阶行列式,规定它的运算法则为
.已知函数
.
(1)若
,
,求
的值域;
(2)函数
,若对
,
,都有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5440a1b5d9338efd6976a56432e100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c8894e0b37af5da23a1c1bffb32017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cce928a442f2feb4671b245142ab96.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3cf0f585938ede9eca890a6eb326d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388d3d213a231cccf854a29eef611d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5224a7da7fe6bc28971ce4c277f88588.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f504fcfe5b1116cdcdfa37fccae8a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24eb36914c5d05da7d3e23900f0b4124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e2227004f51fac55c38578e2843acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e37ee5f5ea8640aae6193de160c9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-09-21更新
|
922次组卷
|
4卷引用:江西省萍乡市2022-2023学年高一下学期期中数学试题
名校
4 . 已知函数
(e为自然对数的底数)有两个零点.
(1)若
,求
在
处的切线方程;
(2)若
的两个零点分别为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6e76de4cbccbface43c0069ccd1cfe.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90fbb6770e773fcb8318616fbd23e25c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8210703fae32cb9d752f24dc69be7a3.png)
您最近一年使用:0次
2021-10-06更新
|
1426次组卷
|
7卷引用:江西省萍乡市第二中学2023届高三上学期10月份质量检测数学(理)试题
名校
解题方法
5 . 已知函数
,若
,若点
不可能在曲线C上,则曲线C的方程可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32815a6b7462fc68521ec4620938d39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f74fe8b70a97156754d8e878f6607719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-09-05更新
|
967次组卷
|
3卷引用:江西省萍乡市上栗中学2022-2023学年高一上学期期末数学试题
6 . 已知点
到
的距离是点
到
的距离的2倍.
(1)求点
的轨迹方程;
(2)若点
与点
关于点
对称,点
,求
的最大值;
(3)若过
的直线与第二问中
的轨迹交于
,
两点,试问在
轴上是否存在点
,使
恒为定值?若存在,求出点
的坐标和定值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若点
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e414c3f13e0e28fe2250bf88e33d5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d436fc4cde0f6490b25bdd6e476332ed.png)
(3)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8649ce18c628d0e03e72cef541f8284f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d405c7e1ed6ddac33126b8c1cb511b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2020-11-23更新
|
2063次组卷
|
7卷引用:江西省萍乡市芦溪中学2021-2022学年高二上学期开学考试数学(理)试题
名校
7 . 已知函数
,其中
为常数.
(1)讨论函数
的单调性;
(2)若
有两个相异零点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3890541e03e977afe39975143b2794ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b97b295f88972ba1c7e3cefda0885d.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a63c9c4981054fdf544a9d4168684b.png)
您最近一年使用:0次
2019-03-26更新
|
1626次组卷
|
3卷引用:【市级联考】江西省萍乡市2019届高三一模考试数学(理)试题
8 . 已知函数
.
(1)讨论函数
的单调性;
(2)设
,对任意的
,关于
的方程
在
有两个不同的实数根,求实数
的取值范围(其中
为自然对数的底数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b15ebe5c428e0090e6a9f25a7c2d4fb.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b8527882799f546a2c215bc8777a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcabbea31e31dc15bd21a26c4d62d983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7be1b46382c95c4c02638095d5259a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742268e12c1dd269500286a8d35e3b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6ca12a57481d558b9d33f3f3d1ccc9.png)
您最近一年使用:0次
2018-03-10更新
|
1079次组卷
|
4卷引用:【市级联考】江西省萍乡市2019届高三第一学期期末考试数学文试题
名校
9 . 已知函数
.
(1)若在
处,
和
图象的切线平行,求
的值;
(2)设函数
,讨论函数
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c38269afe80aa09ee7a26e8656826a.png)
(1)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56dd5f5b89bdf799ca6984cea1d6aa71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74314814cdc6fb803abb4692458af131.png)
您最近一年使用:0次
2017-05-09更新
|
1405次组卷
|
3卷引用:2016届江西省萍乡市高三下学期第二次模拟考试数学(理)试题
名校
10 . 已知函数
.
(1)讨论函数
的单调性;
(2)若存在
,使得
,试求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d923df82b977d6293b49c53fbeda43.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98482ea7b98e0f06e72664e78389e4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e856dd7407c2fad6594228317e3d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-03-22更新
|
1165次组卷
|
3卷引用:江西省萍乡市莲花中学2019-2020学年高二下学期月考数学(理科)试题
江西省萍乡市莲花中学2019-2020学年高二下学期月考数学(理科)试题2017届内蒙古包头市高三下学期第一次模拟考试数学(理)试卷(已下线)第七章 导数与不等式能成立(有解)问题 专题四 双变量能成立(有解)问题的解法 微点1 双变量单函数能成立(有解)问题的解法