已知函数
,
.
(1)讨论函数
的单调性;
(2)讨论函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76809d9d3d56513c925fb03922d02a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93f9b9e0a3c8dbd7f6e62631270a03e.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2e46808c9116614e0c181c0ef9236e.png)
更新时间:2022-01-07 19:55:29
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解答题-问答题
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适中
(0.65)
【推荐1】函数
.
(1)讨论函数
零点的个数;
(2)若对
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b097445dedfce8728d2121ee83ca3d97.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb2a25e724908d3df4ed805545ff405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】已知函数
.
(1)当函数
在点
处的切线方程为
,求函数
的解析式;
(2)在(1)的条件下,若
是函数
的零点,且
,求
的值;
(3)当
时,函数
有两个零点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98ac2f17893b3a65f6e0b0fe2b92374.png)
(1)当函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c887da0c850acf41ab249cc262ae39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94004e756bed5ac08a2062a8bab8992f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8edd94c1ef4ab5557e938278ef066c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02657ab1c65825868e49acb108fdd862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c45b5bbd5fb7706c6f7c24df34fc145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d14ff8de4b75799117d109d9655032.png)
您最近一年使用:0次
解答题
|
适中
(0.65)
【推荐1】已知函数
,其中
.
(Ⅰ)求
的单调区间;
(Ⅱ)若
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上实根的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf92da0f41bbd11108bc96a951da6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b866aaaec24fca1eef80a4a2be3559c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】已知函数
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(1)讨论函数
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(2)证明:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b5086bfa27bc2fe9003abaecd86719.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1f658cf37df092820e45d6d49de2d0.png)
您最近一年使用:0次