1 . 已知函数
的极值为
.
(1)求
的值;
(2)若
,判断方程
是否恒有解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/001d34e5bd26eaf567170acacf03abc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92be82894508d5fd942f8933e736b728.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da5f44c2df223671baa50ee3715be8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94ea992e3f9c206cd3e315d8b968a6f.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
,
既存在极大值,又存在极小值.
(1)求实数
的取值范围;
(2)当
时,
,
分别为
的极大值点和极小值点,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31449d81f453d0eab7cd3b2287c54f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.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/3fdbec30d8584f835d5c6aa17f7eeaf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55620d6800e304dd3fc7f5758d2d7e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解题方法
3 . 已知函数
(
为自然对数的底数).
(1)当
时,求
的极值;
(2)若函数
在
上有三个不同的极值点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96be0c21e85460968f3cc1c782f16520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c895279c724791bfcafcd6e566c630db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-04-01更新
|
586次组卷
|
2卷引用:重庆市主城区六校2019-2020学年高二下学期期末联考数学试题
4 . 已知函数
.
(1)若
的极大值为
,求
的值;
(2)若过原点作函数
的切线有且仅有2条,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04328c3d05bd66b7a0272442aedcbcea.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2676c3440e7792037153b95b458191c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若过原点作函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a0b46a6c69db89b44d080e20fee4b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . 已知函数
.
(1)若
的极大值为
,求
的值;
(2)若
,
,求证:
的切线不过原点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a9e53fff3a4cf013322fb10c8e422f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2676c3440e7792037153b95b458191c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db0d746d07643529e78549c26b5756e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
.
(Ⅰ)若
,求
的最小值;
(Ⅱ)函数
在
处有极大值,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa84aed4e92078c5ce0f820d0cfa6ba.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
您最近一年使用:0次
2021-01-10更新
|
1949次组卷
|
9卷引用:贵州省黔西南州兴义市第二高级中学2020-2021学年高二上学期期末考试数学(理)试题
贵州省黔西南州兴义市第二高级中学2020-2021学年高二上学期期末考试数学(理)试题宁夏银川一中2021届高三第六次月考数学(理)试题湖南省株洲市2020-2021学年高三上学期第一次教学质量统一检测数学试题(已下线)黄金卷06-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(山东高考专用)(已下线)必刷卷02-2021年高考数学考前信息必刷卷(江苏专用)山西省运城市高中联合体2021届高三下学期4月模拟数学(文)数学试题宁夏固原市第一中学2021届高三下学期第一次模拟考试数学(理)试题(已下线)专题02 导数的基本应用(练)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》湖北省武汉市第一中学2022-2023学年高三上学期10月月考数学试题
解题方法
7 . 已知函数
,且
恒成立.
(1)求实数
的值;
(2)记
,若
,且当
时,不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98fc9749b6e3fd08393b196ed70bdcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473aa1c3e282494bd6955fd107e360fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573394d925f221e828978ba5b528dd39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6330540758a21f46fc7a6d1e6328d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a5281e08d24b5551e905f60138181b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
的极值为
.
(1)求
的值并求函数
在
处的切线方程;
(2)已知函数
,存在
,使得
成立,求
得最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6d0893daaced06e720da4317262695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f41f00c2b89691e60cdf9d38ff1d8ab.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94774a6918029d1e216e8cb160c8776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c21d099d25386e9024207dafc42c6507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c01ac2a7f6ad7e03cb7a61daefab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-11-16更新
|
402次组卷
|
4卷引用:福建省福州市八县(市)一中2021届高三上学期期中联考数学试题
20-21高三上·江西南昌·阶段练习
名校
9 . 已知函数
.
(1)当
时,讨论函数
的单调性;
(2)若函数
有极值且极值大于0,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55023656a7d6cc2f25e5ce8d9ba19052.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
10 . 已知函数
,
.
(1)求
的单调区间;
(2)已知
有两个极值点
,
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5227d81433a93901b6d17a34e0ce516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e477aa5f8c79e4dcf2b0110aad15961.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ed5a4f8d724011398458765f0f2edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee657c3f25e5b18440df03913f38f219.png)
您最近一年使用:0次
2020-10-10更新
|
547次组卷
|
5卷引用:福建省漳州市南平市2019-2020学年高三第二次教学质量检测文科数学试题