已知函数
.
(1)设
,讨论
的单调性;
(2)若
的图象在点
处的切线方程为
.
①求实数
的值;
②当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4ffcf0dd0f9dbfc8360cbba041a09b.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8bdb49d4cb59b0f4185dd8eb821194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d09499542f54aa2221c2a8ad3ba9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d2d95020af541d5efbe010cfb99ee8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df0d4aab5d8c0ee623a30a3164ef302.png)
更新时间:2022-06-01 18:06:14
|
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(2)若函数
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98301ae4ae6f12a77d88a724dd7e9ac1.png)
(1)若曲线
在点
处的切线平行于
轴,求函数
的单调区间;
(2)试确定
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上存在唯一的点
,曲线在该点处的切线与曲线只有一个公共点
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98301ae4ae6f12a77d88a724dd7e9ac1.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d4e65945e990790a3eb2f2bdbe4e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(2)试确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解题方法
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(1)讨论
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(2)若方程
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2e41c64ac5508a9ba27b697122d6d5.png)
①求实数m的值;
②若
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解题方法
【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c29f192902530d80284d4a40690105.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9455c258fb55dd709b0c1f11ae2cd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21cdb182811e1139a568c7451e5b0237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e434d52b7741e42c21c2785eb07ffcaf.png)
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【推荐1】已知函数
.
(1)讨论函数
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(2)若函数
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①求证:此零点是
的极值点;
②证明:
.
(本题可能用到的数据为
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
(1)讨论函数
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(2)若函数
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①求证:此零点是
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②证明:
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(本题可能用到的数据为
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(0.4)
名校
【推荐2】已知函数
.
(1)当
时,求函数
在点
处的切线方程;
(2)讨论
的单调性
(3)若
存在两个极值点
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22cd277fe63fe62cc55060fac0c6178.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
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