设函数
.
(1)当
时,求
的单调区间;
(2)若当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0775c7f80ffd673e261b450e46f9007e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f498b6874410fb46e9807e04371e6e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2018-07-25 18:26:53
|
相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】已知函数
.
(1)当
时,讨论函数
的单调性;
(2)当
时,证明:对任意的
,
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89867d3ba26061602e97fa1853d51ce.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
,
.
(1)当
时,求
的单调区间;
(2)当
时,若存在
使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a4c3f48fe05ec21c8fe8939a3ee912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9413be6f2821909223cae6cfac464e91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cf94a58e714ed5c8de2591020c1b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae17887ccf795c630b89ff5c9f72813a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐3】已知函数
.
(1)若
,求函数
的单调区间;
(2)若函数
存在唯一的极值点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3b9b43737a427de9986c0cf3794fa6.png)
(1)若
![](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
解答题-问答题
|
较难
(0.4)
名校
【推荐1】已知函数
.
(1)求曲线
在点
处的切线方程;
(2)若对任意的
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01770cbf2f1ed2d0e689b453c126428.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a51fe74d3a239f762e2e1784f62e3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad34828eb5687d5571529c014e1136d5.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca971c44c9a6ca44058ae0b475c402e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
解题方法
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cb0b0c14f4c8eed6e27a5316ba5fb0.png)
(1)当
时,求
的最小值;
(2)在区间
内任取两个实数
,若不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed5c230ec6bb1ace017795a2464958d.png)
恒成立,求实数a的取值范围;
(3)求证:
(其中
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cb0b0c14f4c8eed6e27a5316ba5fb0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b8037c0972ef96ce6e1c3b0af9edbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed5c230ec6bb1ace017795a2464958d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd3f9dfa75e7adc621588dccfc42f6b5.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6dcf71c1180edb726503224708ca798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11fa9497b95732f3d296a89d5a1b6fc.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1614b0110c1c74f3eb2a8d752e8c0fe.png)
(1)若关于x的方程
有3个不等实根,求
的取值范围;
(2)若关于x的不等式
对一切实数x恒成立,求ab的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1614b0110c1c74f3eb2a8d752e8c0fe.png)
(1)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8551a15e915d1949c01c3993551d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b04d667d7a4cbbc1417b93c5f90d1d.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902ac3001f3718d4c0c722951a8d0b81.png)
您最近一年使用:0次