1 . 已知函数
,
的定义域为
.
(1)求
的极值点;
(2)讨论
的单调性;
(3)若函数
存在唯一极小值点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270679f83d2f89307b9b7080cf81203a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9ee1df512f2ebc9e6cff9953b805b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df17d1b404651bf6dbc97b519d452e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
2 . 已知函数
,
.
(1)若函数
只有一个零点,求实数
的取值所构成的集合;
(2)已知
,若
,函数
的最小值为
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de31991e435bd7f80b8ac4f50b3f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc774a9ac8258cfc1b6f7f5378fb7406.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804125ef5ede01523a3f7d95a35f964b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51dedd7e4a202a2e078dfa7c6017c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97b2ed621d7f11decf6432e43c3cc5ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c21c961479a9ac78f7c40cc7564fbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c21c961479a9ac78f7c40cc7564fbb2.png)
您最近一年使用:0次
2024-01-26更新
|
520次组卷
|
3卷引用:四川省成都市树德中学2024届高三上学期期末数学(理)试题
名校
解题方法
3 . 设函数
,其中
.
(1)讨论函数
在
上的极值;
(2)若函数f(x)有两零点
,且满足
,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002c512aab883313221ff4ad949deedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
(2)若函数f(x)有两零点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7232c864ab8b238a74f608dfa3a0a12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-06-15更新
|
1369次组卷
|
5卷引用:四川省成都市第七中学2022-2023学年高二下学期零诊数学试题(理科)
四川省成都市第七中学2022-2023学年高二下学期零诊数学试题(理科)四川省成都市第七中学2024届高三零诊模拟考试数学(理)试题广西南宁市武鸣区武鸣高级中学2024届高三上学期开学调研测试数学试题(已下线)专题2-7 导数压轴大题归类-1(已下线)第10讲:导数期末题型突破(单调性、不等式、零点、恒成立)
名校
解题方法
4 . 设函数
,其中
.
(1)讨论函数
在
上的极值;
(2)若
,设
为
的导函数,当
时,有
,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef96ff936eb415b1f8fe6b9166d8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.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/544530e1133b2924ccfbe691141a5641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8844bb29d5927cc559af00f20ef850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-06-14更新
|
537次组卷
|
3卷引用:四川省成都市第七中学2022-2023学年高二下学期零诊数学试题(文科)
5 . 已知函数
,
.
(1)当
时,求函数
的极大值;
(2)记
,
,
,若
有两个零点记为
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bffe3278517f19cd26e6be6a7ffb7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dab35a3a6c08688da0ea37ce914836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f4ec273c3e4fe153100aff88e01806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe3c2faa2868470ff3b0913e1301fb3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2aabc96b7433bba077ceac76d8f0d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb45b1259c5111ef7d3d97d4681b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6719de6a1b627f810603e301e54a45fd.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
.
(1)若
,求
的极值;
(2)若
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc582458f43ed2fdc0b8c51dcad1494.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6d1efa04a6bc0ec188ced80b9a2cd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec54dae13eddc5299d30731e2a7d12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-07-13更新
|
307次组卷
|
3卷引用:四川省资阳市2022-2023学年高二下学期期末数学文科试题
解题方法
7 . 已知函数
.
(1)若
,求函数
的极值,并判断其零点的个数;
(2)若对任意
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f9ac035c5d47d7537905edea25ccf6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a29a741cef8cb9255d537bcad930d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
8 . 已知函数
.
(1)当
时,求函数
的极值;
(2)函数
的图象与
轴交于两点
、
且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040c0a0ba3b8c86e733aca57cfedb18a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b583230a32b774445332490c511989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4535d92ec584cdd94708a9e34aef8cf6.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)当
时,求
的极值;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa0b1018d769cab57a1cc2938fa9810.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cd7d46136029a789443fbbb11f5d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22993834e9f2e9d3cb643c5744ce2a7e.png)
您最近一年使用:0次
解题方法
10 . 已知函数
.
(1)求函数
的极值;
(2)对于任意的
,当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972ca5da188a612c764b6c48cd98dd39.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4169c5f606352788872a03fe5476fea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ee41f3f49fbd3af30f2e1533e869dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-05-09更新
|
424次组卷
|
2卷引用:四川省宜宾市叙州区第二中学校2024届高三上学期期末数学(文)试题