已知函数
.
(1)当
时,求
的图象在点
处的切线与坐标轴围成的三角形的面积的最小值;
(2)若关于x的不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7c9c2f119fd07461d385eceab6cabb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7b5582e1931243dbb90b7591137f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/068ff25c767fcbe6fe596d996031eed1.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21c084f67798d5b6a6f6ded20dcbb8a.png)
更新时间:2023-12-19 21:02:35
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐1】已知
,
.
(1)求
在
处的切线方程;
(2)若不等式
对任意
成立,求
的最大整数解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b69a910e5fca99e1dd907e8fae2a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1da3054248314e83b006bc210a5d3d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac44306bd808f4653e13315bf82f1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.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
|
较难
(0.4)
名校
【推荐2】已知函数
.
(1)求曲线
在点
处的切线方程;
(2)设函数
,若曲线
不在
轴的上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073639ae52cd422a11599bd8a2f0e73e.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9bf95ecd96ff60e9966022a93c85b4.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6b409760d56bf1de7b7d0ca18bb995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ed26c227174a60f314a7946e9d7f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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
解题方法
【推荐1】设
,
.
(1)令
,求
的单调区间;
(2)若任意
且
,都有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7c5c3fc5e552e30bc996c38d3bc407.png)
(1)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6644b717550512954aff0cac31a393c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)若任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85db25f0623bb097e5a57117df267011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5b2a5c548a8af71bc15608a51dd6ab.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2】已知函数
.
(1)当
时,讨论
的单调性;
(2)若存在实数
,使得
恒成立的
值有且只有一个,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4df01b062bfc0fc620d02858249682.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d837742cf6b7bf1c40d9c8367d37533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1f67db718129332f56462f9049f8c1.png)
您最近一年使用:0次