设
,函数
.
(1)请讨论该函数的单调性;
(2)求该函数在闭区间
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c150cdf147f53a5c6f4e024c862ce5dd.png)
(1)请讨论该函数的单调性;
(2)求该函数在闭区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ce23fd1d866c3a711875b7c5a1c13c.png)
22-23高二下·上海静安·期末 查看更多[4]
上海市静安区2022-2023学年高二下学期期末数学试题(已下线)模块三 专题5 导数--拔高能力练(人教A版高二)(已下线)模块三 专题8 导数及其应用--拔高能力练(北师大2019版 高二)(已下线)模块三 专题7 导数--拔高能力练(人教B版高二)
更新时间:2023-06-20 18:24:54
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解答题-问答题
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较难
(0.4)
【推荐1】(1)讨论
的单调性;
(2)记
,试探究是否存在
使
在
处取得极小值且
恒成立,若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e21d4653eadd671d369ac8c746ad42.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b29e05819d8756c101838746708acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85187c85826beeca12137805293fff77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】已知函数
是函数
的导函数.
(1)求函数
的单调区问;
(2)设
,试比较
与
的大小,并说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/748b8df303ac3706168f52a4c5e5faac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a69f1b3e53fed9fa0f9336cce7d9a0.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d100c22435a23e017cfe6f535379d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c81acd74ca60afd8764de4865aeadf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392009df043af5de7260a7608c8181c6.png)
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【推荐1】已知函数
,
.
(1)讨论
的单调性;
(2)是否存在
,
,使得函数
在区间
的最小值为
且最大值为
?若存在,求出
,
的所有值;若不存在,请说明理由.
参考数据:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c79b1e56cc56814723387e2864ca57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b7cfcc147916ae7eeb5d557fea945e.png)
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【推荐2】已知函数
,
,其中函数
的图象在点
处的切线平行于
轴.
(1)确定
与
的关系;若
,并试讨论函数
的单调性;
(2)设斜率为
的直线与函数
的图象交于两点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf40bad1cc89311930cce356672354.png)
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56289a35f8f061ce4c8a0560fe64c739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cf0f8829ad6ed064ba129545b2d3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)设斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf40bad1cc89311930cce356672354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d3c0e7508ff7fd36faba07a0aa41ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d06595c7d839f2edbf9ef575ef027d6.png)
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【推荐3】已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6bb425c55a284b3be9df5473a31902.png)
(1)若
,求函数
在点
处的切线方程;
(2)当
时,
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135a081596d7973476d854364c59f1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6bb425c55a284b3be9df5473a31902.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3ac8b888cea3c2a212f4b21447d3bd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b0ed53225c1a9d253ef5cca581a7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
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