已知函数
,
.
(1)若
,求曲线
在点
处的切线方程;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f985e28db62d7f3ad9980f336cc1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa935ab9bd6d5a7da63efd2c28d70c53.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec814886f074a9392a4ed3a097732e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85ca950a70855d770f47f4025f2e14e.png)
更新时间:2022-12-17 10:20:28
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解答题-证明题
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较难
(0.4)
【推荐1】已知函数
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(2)若函数
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,求证:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622e9274b2eae487b73464a264f9449b.png)
(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
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解答题-问答题
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名校
【推荐2】已知函数
.
(1)当
时,求函数
在点
处的切线方程;
(2)若当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0777f05236404568e1efdf7952fb3d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea9824af71c9da5db5a00ec06063024.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e317300514a87fdc7838835014a25bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-证明题
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(2)设
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的两个零点且
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.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffe29724299304684e9c733ca347289.png)
(1)讨论方程
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(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684bcf84f0a266515bfafde0da903050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
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解答题-证明题
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较难
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解题方法
【推荐2】已知函数
.
(1)判断函数
在
上的单调性;
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(3)求证:
(其中
为自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea1fa83cce2b45de1ef26463e5d773f.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1582e9d437ddf096b90257714a250a54.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5539556d83a96a0c2d6a1e0eefc88dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1582e9d437ddf096b90257714a250a54.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b232df27f078d5c6baa295ed0e805a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff5a8f648d375cc6ccf6649cab698c6.png)
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