已知函数
,曲线
在点
处的切线方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc02fc8505918d09e7d9f291190cbd4.png)
求a,b的值;
证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107479b4950e575b440c2f568516a548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f6a8fe1c12aacc7396a4b9526671c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc02fc8505918d09e7d9f291190cbd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626d67ee037054811dbf369dbc1793cf.png)
更新时间:2018-05-09 18:01:52
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相似题推荐
解答题-问答题
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困难
(0.15)
名校
【推荐1】已知
是自然对数的底数,函数
,直线
为曲线
的切线,
.
(1)求
的单调区间;
(2)求
的值;
(3)定义
函数
,
在
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a12c6f53093c3266b2fecb610e0bc219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a27c31d57a84a5928898de139cb40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfc6adb92436ae6ec9972212e567009.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec4c736aa63adafd00feafdb49dff17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82397daa18bc3d884fdd29a7f0228453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92273bc00f675df7c92c2d2d71fb6968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解答题-问答题
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困难
(0.15)
名校
【推荐2】函数
.
(I)函数
在点
处的切线与直线
垂直,求a的值;
(II)讨论函数
的单调性;
(III)不等式
在区间
上恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5a54269b708e0715fc0c0692da0e4d.png)
(I)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b2caf6048aa0807d8ba591963ff6e2.png)
(II)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(III)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd89e173e119ba05c7b2736d4558d7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ec44e16c942d84044f6fb4d1ec9266.png)
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解题方法
【推荐1】已知函数
.(参考值:
)
(1)证明:
在
上有唯一的极小值点;
(2)试研究
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441141447a205a28ef55650ec077e1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e113aeb262a237b6d3189f1d037e87.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
(2)试研究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐2】已知
是自然对数的底数,
.
(1)求曲线
在点
处的切线方程;
(2)当
时, 求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091a2899785e959db70f53b9816da9f0.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7563dfd7d20c9593dc69483b9429b378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96d21c2a237cf68e974bb2609baf73d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/730d9383170b12a50ccdb22adeec0e85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cc6246ded1b46cc42e2fe071503604.png)
您最近一年使用:0次