已知函数
.
(1)当
时,求
的单调区间;
(2)若
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af8137a3974800602295bfaf63c6f674.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e7963dedb0aef42240c37a443a6e54.png)
更新时间:2021-02-06 08:23:02
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】设函数
.
(1)求
的单调区间;
(2)求函数
在区间
上的单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8dceb59cd4e709b211ff4dbc3142dc7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68072473a5106f93e3026d992859f7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知函数
.
(1)求函数
的单调区间;
(2)当对于任意的
,不等式
恒成立,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b60cddf72b061eafaeaf02c5ed7804.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)当对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b481c660bea0673fdd7b31679cab53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dc6ccef9665e24852da87fed11aeffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐3】已知函数
.
(1)若a=2,求
的单调区间;
(2)若函数
存在最大值,且最大值大于0,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da86c33fca8699b4236f19a10de2f48.png)
(1)若a=2,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e186350067ea53f9e61320b076a8bd05.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,
为自然对数的底.
(1)若函数
有两个极值点,求实数
的范围;
(2)若
为
的极值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada56dfa127c9c2ea2fe8302ccfda34d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264b93aa6b21f14144bf1f77be3831e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b832f62ee75dd7c9944271ee582cc8fc.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】设函数
,其中
.
(1)若
,证明:当
时,
;
(2)若
在区间
内有两个不同的零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54168622f392cac4d7d48bff79b14245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb1dc30d4b297c6d5d0d6d91eab1e3b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
您最近一年使用:0次