1 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
时,证明:
.(注
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5e5ba7fa63def4485e1fcff3e96c9e.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b717e559b68f93be0fa22d4275b09aa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52881be613aa404e553da30d8987cfad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dad09268b7cb8bfcbea010cb6d2a29e.png)
您最近一年使用:0次
2 . 已知函数
.
(1)若
是
的极值点,求a;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5132c6282c7c7aecfdc0c164dddfb0f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ffcc01616043a2077c48a3dec321b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358d5ec8cb7ebe2dabc56c4c5dff22d9.png)
您最近一年使用:0次
2022-07-15更新
|
1768次组卷
|
4卷引用:福建省莆田市2021-2022学年高二下学期期末质量监测数学试题
福建省莆田市2021-2022学年高二下学期期末质量监测数学试题辽宁省沈阳市重点高中联合体2022-2023学年高三上学期9月月考数学试题(已下线)专题5 隐零点问题(已下线)专题09 导数压轴解答题(证明类)-3
3 . 已知函数
.
(1)若
,求函数
的极值;
(2)讨论函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab422c931451b5048381821b7da8588.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
4 . 设函数
,函数
,其中
,(
是自然对数的底数).
(1)求函数
在
处的切线方程;
(2)记函数
的最小值为
. 求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b26f55c7c29644dfe0277d3e2adf10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/275def986ac0cb401d6fdc2473acb119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187c21027ff08411931d32c530b64fd3.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed22acda3591f67e9fbffe3fd6112a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f22a5e113580f63448e650e94134fbb.png)
您最近一年使用:0次
5 . 已知函数
和
.
(1)求
在
处的切线方程;
(2)证明:存在直线
,其与两条曲线
和
共有三个不同的交点,并且从左到右的三个交点的横坐标成等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5b73240b061499bb52ee932362dcba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e275bb972163df5318c87a8c89f6379e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5b73240b061499bb52ee932362dcba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffe604dac7e511c06aa339460743ba0.png)
(2)证明:存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af79f45b5880c72a349500da9d8e118d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
您最近一年使用:0次
6 . 已知函数
,
为
的导函数,函数
.
(1)当
时,求函数
的最小值;
(2)已知
有两个极值点
且
, 求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b200c319099802185823455edde3d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585de67a3fc494297d375d339af6d153.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9009d4e35bd69a8d3599ec9c227f16f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f0beff9675743c63e421b080a89b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解题方法
7 . 已知函数
,
.
(1)证明:
有且仅有一个极小值点
,且
;
(2)若对任意
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42cd5920c27db7257886fece226833b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4031b540afcd3061f431b735a3c62bb6.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b91a0a580b2483bcd16f916611f81c3.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0656eee2d8ee838aacfda24a00ad69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
8 . 已知函数
,
.
(1)讨论
的单调性;
(2)若
有极小值点
,极大值点
,且对任意
,
,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3cc5ae8c21fc6b7dd610ffed18f741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)讨论
![](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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0c0d74c0a22e3e81e5dcd873b03ee0.png)
您最近一年使用:0次
2022-07-05更新
|
344次组卷
|
2卷引用:福建省厦门市2021-2022学年高二下学期期末质量检测数学试题
9 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17daf1c386637f2f28a2400080481282.png)
(1)当
时,求
的值域;
(2)当
时,
,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17daf1c386637f2f28a2400080481282.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a026514e78609c17fb31fb8e167af5b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4944524664417f990537989958879de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd48fbc0361136905154b9717c388c0.png)
您最近一年使用:0次
解题方法
10 . 设函数
,
,若曲线
在点(1,f(1))处的切线方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
(1)求a,b的值:
(2)若关于x的不等式
只有唯一实数解,求实数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2883815c0ffc16f8809913897e05f1c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650724afadd92e9fed35323bada1e250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
(1)求a,b的值:
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971e56a7454bc3cd941c5f4e46c25d61.png)
您最近一年使用:0次