已知函数
.
(1)当
时,求函数
的单调区间;
(2)存在
,
,使得
,求t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6bb12b7a802873cf7c10c9feef62ea1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17641d15644d5fb2c79fd1016b21520f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbb169d9a3ea1c75ce984239614d0359.png)
更新时间:2020-09-04 11:53:56
|
相似题推荐
解答题-证明题
|
适中
(0.65)
名校
【推荐1】已知函数
,
.
(1)设
,当a=3,b=5时,求F(x)的单调区间;
(2)若g(x)有两个不同的零点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34cfceeb19a4bd2309eef88a406365fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347384fba321847962c4366f61a214b3.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09884252e52e1c09b1967617eddc0cc5.png)
(2)若g(x)有两个不同的零点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fac30b9781ec595375e06e235c870e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f40abaca226f74d66d683535114cceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e3090a098e891e1883168719f7ad05.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)若
,求函数
在
处的切线方程;
(2)在(1)的条件下,令
,求
的单调区间;
(3)若
在
上单调递减,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ef26ac870ad22064613d1ee52f152a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)在(1)的条件下,令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c765461ae1a6c70f5cbdcb6c932a22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.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)
【推荐3】已知函数
.
(1)当
时,求
的最小值;
(2)若
有两个零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fa70bebc6a517e6e63e43d227330f6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
(
),
(
).
(1)若函数
在
处的切线方程为
,求实数
与
的值;
(2)当
时,若对任意的
,存在
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6ee16e9d014fcfa97cd3df5dd24475.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5eed9d44c489d59d01d52bbba552687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d5a5e70f64f0933ae1e4ddec5fa2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17641d15644d5fb2c79fd1016b21520f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.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
|
适中
(0.65)
【推荐2】已知函数
.
(1)若
使得
成立,试求
的取值范围:
(2)当
在点
处的切线与函数
的图象交于点
时,若
的面积为
,试求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc0b6a59985dc9e5deaffb6aa0dd63b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87025da788a5e1f009ed0159800e7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138f1e6a192aec6a1e80c08a5dfaf35e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074d6afaec56d00ffd20e5672b32269c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5effc86dd76263c355677af977999830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee74589d2315942a29327b8397482530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6765a87bcc2b6d44aabdee9af73e6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6696ee99cc395a2b72d0bd7017c315.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)
解题方法
【推荐3】已知函数
在
时取得极大值1.
(1)求实数a,b的值;
(2)若存在
,使得
成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364ac2d345c8c4bbd9f766b1dfdd5079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
(1)求实数a,b的值;
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0587abc464c030b0231e60a02d50545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f697c0c73219c5467a0bb792074673a8.png)
您最近一年使用:0次