名校
解题方法
1 . 若关于
的不等式
恒成立,则实数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8ff740d3ecc2fc5a460bd6e4268293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.1 | D.![]() |
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2 . 已知函数
(e为自然对数的底数).则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c664c44156cd657512376de9fbbf28.png)
A.函数![]() |
B.若函数![]() ![]() ![]() ![]() |
C.当![]() ![]() |
D.当![]() |
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名校
3 . 定义:设
和
均为定义在
上的函数,其导函数分别为
,
,若不等式
对任意
恒成立,则称
和
为区间
上的“友好函数”.
(1)若
和
是“友好函数”,求
的取值范围;
(2)给出两组函数:①
,
;②
,
,分别判断这两组函数是否为
上的“友好函数”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b2c3252d8371afaddf69bcc633f8be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bb6324279df94decba955e04ccfa9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e54f38c13f26cd12acfbebecc83c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10e5c7ac3c66e7e269a36119899ef41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)给出两组函数:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dff434ff946b8ae010de8d8cfaccb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec4fa3b5534a782bbddc28c41826d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b63e6bf2740efd054cfa0d8c7edc35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b780cf4fb1016e183c8135e31b5953f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
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名校
解题方法
4 . 已知函数
的图象在
处的切线过原点.
(1)求
的值;
(2)设
,若对
总
,使![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beddebd721924f57059487a9b9107d4a.png)
成立,求整数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e53e15759880b59fec103fd0a9810bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d06e33d079ac1649ee5eea8f61de7cf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3563575756ac8aa8c8e499241bd705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4e19674ab56753f9729a7b360d0cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6d1ab7e8a09f5d8ee9586dc760a876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beddebd721924f57059487a9b9107d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3bc58b2c73cf926a7ced1097cb92e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知函数
,
,若关于
的方程
有两个不等实根
,且
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba052542ba06cf22818710941733732f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb4df9e51db0166f5a3c29e851f525c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd64906e52eba2dc956a651969d4912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c54705d32dc6820f1a90eec2225dcf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
6 . 已知函数
.
(1)判断
的零点个数;
(2)求曲线
与曲线
公切线的条数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fee9182728d3dc445d86fda4621dfb8.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
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2024-05-12更新
|
475次组卷
|
3卷引用:陕西省西安市第一中学2024届高三下学期模拟考试数学(文科)试题
7 . 已知函数
.
(1)若
的极大值为
,求
的值;
(2)当
时,若
使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f64570f23007d2ff92d009bbad9e25.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b019fbfd1961cff8f3ff211d957c633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d30e582553a6e95f13fd7ddb571f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3806cf55937adabb166ebb69afb6437d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1540b6b10f07a867618a1eec02e2a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8 . 已知函数
.
(1)当
时,求
的零点个数;
(2)已知函数
,若
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375c058f6f8b64b7039cd133176f04c5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ffcc01616043a2077c48a3dec321b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29699420416d7904deda488511f03f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04bd9759565e4cd93839a2ce2b31b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
9 . 已知F为抛物线C:
的焦点,点A在C上,
.点P(0,-2),M,N是抛物线上不同两点,直线PM和直线PN的斜率分别为
,
.
(1)求C的方程;
(2)存在点Q,当直线MN经过点Q时,
恒成立,请求出满足条件的所有点Q的坐标;
(3)对于(2)中的一个点Q,当直线MN经过点Q时,|MN|存在最小值,试求出这个最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8516f71467b419293fa27df70bdaed74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0757f840f08c56d5d688cf4c1c25267b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
(1)求C的方程;
(2)存在点Q,当直线MN经过点Q时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bee3672710a87854a3ecd3e169ffec.png)
(3)对于(2)中的一个点Q,当直线MN经过点Q时,|MN|存在最小值,试求出这个最小值.
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2024-05-11更新
|
1132次组卷
|
3卷引用:江苏省苏锡常镇四市2024届高三教学情况调研(二)数学试题
解题方法
10 . 已知
,则
的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c850f77a4cc05b5019a15d15476eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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