名校
1 . 已知函数
与
有相同的最大值(其中e为自然对数的底数).
(1)求实数
的值;
(2)证明:
,都有
;
(3)若直线
与曲线
有两个不同的交点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a889ce5a83ca52532baee3ab4ab405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eada1c2d3a9e1745f3bdf04d160c80a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216a513198e3c6a9f900f4b24433788d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9034a9453ec63e9486fa791b869ac54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f4eff3125c5e63a994ba1ad5be58e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587a0bc676e5c9484e9b6183aa788f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/124f539f92bfa4ddaaeb00496c386186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec20f97a849f48988a3307945fb6df4.png)
您最近一年使用:0次
2022-10-12更新
|
462次组卷
|
2卷引用:浙江省十校联盟2022-2023学年高三上学期10月联考数学试题
2 . 已知函数
.
(Ⅰ)若关于x的不等式
恒成立,求m的取值范围;
(Ⅱ)若
,方程
的较小的实根为
证明函数
在
上单调递减;
(Ⅲ)若
,且函数
的较大零点为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa16829d4c97b65ae131c40396084f8.png)
(Ⅰ)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4665289bbaefe396424f4cf47cd05207.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c506254fd479a9b513f85220330670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053171b7b11b41f4d6afd533c876725b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65cf7580dd5aec4f8a14af3adcc07132.png)
(Ⅲ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5604693cd530950be61e6227e5669440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3bbe1e1edab5afae00884812c0dbe4.png)
您最近一年使用:0次
3 . 已知函数
,且
在
上的最小值为0.
(1)求实数
的取值范围;
(2)设函数
在区间
上的导函数为
,若
对任意实数
恒成立,则称函数
在区间
上具有性质
.
(i)求证:函数
在
上具有性质
;
(ii)记
,其中
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55386df48bce6389f5ea9dd827b2600d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d65bdc820ab87b9a7909d2be591abec.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b81a631c1fcd5fa6986baca8c7f754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/277a2bf55ddf8cf07f22b2128712e2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08653fc03ff2c4ccaf3ab8b18474ee17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b81a631c1fcd5fa6986baca8c7f754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(i)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9626dc41063c34f4243b5a637668b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(ii)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88209b9c5c9503721afc5696b8943a10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2f05512a14030b8a9cd9c118ed962f.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
.(其中
为自然对数的底数)
(1)当
时,求函数
在
处的切线方程;
(2)当
时,若函数
在
上的最小值为
,求实数
的值;
(3)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c004d5bc2d56549c58d10a2fd6ba7a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab625f9a61f620b0c59920729c52c37.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44986287ed599f86a23cfffe788cc76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a003d68d6b622541aa713b06f0dbef4f.png)
您最近一年使用:0次
解题方法
5 . 设函数
的定义域为
,若存在实数
,使得对于任意
,都有
,则称函数
有上界,实数
的最小值为函数
的上确界;记集合
{
在区间
上是严格增函数};
(1)求函数
的上确界;
(2)若
,求
的最大值;
(3)设函数
一定义域为
;若
,且
有上界,求证:
,且存在函数
,它的上确界为0;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a82f9ed1fed1e3aa42434da4671b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5830648092860499a7017d2ee157e77b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617da64f56745521a83fe4b4bf5f20a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf860993c4cee78cdfed6d29273cf76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c28c7adedb14985ec58d6a016770706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21f0ef09f65ef153b4df26a5b9b7d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
,若
的最小值为0,
(1)求
的值;
(2)若
,证明:
存在唯一的极大值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5fae1b99ef44c76e5fce67967866bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5be3af0c67a20bee47063487d305f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9886fbf8d58de26924077e33808642f4.png)
您最近一年使用:0次
名校
7 . 已知
,函数
,
.
(1)若函数
的最小值是0,求实数m的值;
(2)已知曲线
在点
处切线的纵截距为正数.
(ⅰ)证明:函数
恰有两个零点;
(ⅱ)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a68e9852ea3d8e348d284d6df9ca68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a25dcb67d1cb242a60f4fb8f3468a1.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(ⅰ)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc250d99a55c62b89da6ad253978515.png)
您最近一年使用:0次
名校
8 . 已知函数
.
(1)当
时,以点
为切点作曲线
的切线,求切线方程;
(2)证明:函数
有3个零点;
(3)若
在区间
上有最小值,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f6c4499ea6ccfdf2703f43ebcec6b8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39647df26e8e473488e02cf4922184d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f10b576f3333431fe8e5020ace141a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-05-28更新
|
347次组卷
|
2卷引用:广东省佛山市顺德区第一中学2023-2024学年高二下学期期中考试数学试题
名校
解题方法
9 . 已知
,其中
为自然对数的底数.
(1)当
时,证明:
;
(2)当
时,
的最小值为
,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94777f63ecc4d1cd9b987101a17ebab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a262d480584627cf6692ff7685dd130.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172069f76b5517ed5fa3c8cd963f64dd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4f647724654e761774d92b838d224a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
您最近一年使用:0次
名校
10 . 已知函数最小值为
(
).
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f106ed297280fbeaecbd345e204f83.png)
您最近一年使用:0次