已知函数
.
(1)求曲线
在
处的切线方程;
(2)求
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f655fa1a564cd91e510bf70057a3260.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
更新时间:2023-04-20 16:58:43
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解答题-问答题
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名校
解题方法
【推荐1】已知函数
.
(1)当
时,求函数
的在(3,
)处的切线方程;
(2)若函数
在其图象上任意一点
处切线的斜率都小于
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb95e8e4a4db9825d442b7cdfd7412ac.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/452fe7f1f2ccdd41653908b703d3214d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347bb4ffedcbea2f4c16d047a138d75.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0573a6bcc480a91a43126d01bc19eeae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6ddb3766b5215c115a0abf597598aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】如图,设
是抛物线
上的一点.
![](https://img.xkw.com/dksih/QBM/2011/2/22/1570005858656256/1570005863981056/STEM/c35bcf6993a34ce297a045ca917a6f33.png?resizew=168)
(Ⅰ)求该抛物线在点
处的切线
的方程;
(Ⅱ)求曲线
、直线
和
轴所围成的图形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a6be776cdd229e5c1339265b23624a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c190e3498ab082d575c24a1a66b6da0d.png)
![](https://img.xkw.com/dksih/QBM/2011/2/22/1570005858656256/1570005863981056/STEM/c35bcf6993a34ce297a045ca917a6f33.png?resizew=168)
(Ⅰ)求该抛物线在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅱ)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed3af383dea545292074ad8d7d3a830.png)
(1)求
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(2)求曲线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed3af383dea545292074ad8d7d3a830.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
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【推荐1】已知函数
.
(1)设
,求
在区间
上的最值;
(2)讨论
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09724a166c2e746fb6cd644460e3a7d.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c765461ae1a6c70f5cbdcb6c932a22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd83d3f75289cbcefc2f261c707f5a9a.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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【推荐2】已知函数
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(2)求函数在区间
上的最大值和最小值.
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解题方法
【推荐3】已知曲线
,直线
,当
时,直线恒在曲线C的上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d8a48f61c7627cef1f24fe95944041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8006bd670af63fa5fe1e4f3b110402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99be60f95db4256c52dfcae9d09e42bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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