解题方法
1 . 已知函数
.
(1)求函数
的单调区间和极值;
(2)若
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417a9e4eac5fe5a795bc2f577adb64ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54a9ecddef61328d7c202e85963ff02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2017-05-08更新
|
714次组卷
|
4卷引用:贵州省贵阳市2017年高三适应性考试(二)文科数学试题
贵州省贵阳市2017年高三适应性考试(二)文科数学试题2017-2018学年贵州省遵义市航天高级中学高三(上)10月月考数学试卷(文科)四川省凉山木里中学2017-2018学年高二下学期期中考试数学(文)试卷(已下线)2019年6月2日 《每日一题》文数-每周一测
解题方法
2 . 已知函数
,
.
(1)函数
,
,求函数
的最小值;
(2)对任意
,都有
成立,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e29b37cf7b80b1ba4b8cd38a81b836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50e0222931e4585fcf54d5a0b764eee.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d11380d0612e0278ed7ad220ccac5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c77befb23ddbca57b9c341f5b9412e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e82d2b3e8a040c8c80f3cade6b4acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-05-07更新
|
462次组卷
|
2卷引用:贵州省铜仁市第四中学2017年高三适应性测试(理)数学试题
名校
3 . 已知函数
(
,
为常数),函数
(
为自然对数的底).
(1)讨论函数
的极值点的个数;
(2)若不等式
对
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db6dc2210a5568864c76640d4d733a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bded84ca0f47f27a9bd9f07f79242e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce2594833690eedb3328fe747feb3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-04-13更新
|
981次组卷
|
3卷引用:【全国百强校】贵州省遵义市绥阳中学2019届高三模拟卷(一)理科数学试题
4 . 已知函数
(
),![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5098de78e67dce15ecedbb3bdb098cb.png)
.
(1)求函数
的单调区间;
(2)当
时,是否存在实数
,使得
时,函数
图象上的点都在
所表示的平面区域内(含边界)?若存在,求出
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135c32c114aaeb3b4aaf8c99e6e9e87e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5098de78e67dce15ecedbb3bdb098cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab03556c333ab0b55fe86c937b2a5763.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ea71630518e303499f9a6cbc705bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad05719025457903d1b5d5c7b99f97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27163fd8f5e6e71a1cfb8d663d6ce1b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 已知函数
,其中
,
.
(1)当
时,
在
处取得极值,求函数
的单调区间;
(2)若
时,函数
有两个不同的零点
,
①求
的取值范围;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a2739f629caf794a9a1991cff297b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a20457d180264f78d611dc7893d735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94188fea61c347a150744709920d96e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](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/8ce7ae90d808f05e86ea063238e4b2f9.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d0345db6b2e6ebfb1fab6f3b72282c.png)
您最近一年使用:0次
6 . 已知函数
,其中
且
.
(1)求函数
的单调区间;
(2)当
时,若存在
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa0e14f465ef05e3c1ff875d88a9915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cdf6df52eaa6ef7af9905485ae37c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf9bb8f29e6499ba3186cf317c46baa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)当
时,求
的单调区间;
(2)设
,且
有两个极值点
,
,其中
,若
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a63f37e8219ed435465eebce410d339.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6165b7bf8ce750efdcb13669de5f3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba5e106180b423992270939d3826298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2017-03-09更新
|
1502次组卷
|
5卷引用:【全国百强校】贵州省凯里市第一中学2019届高三下学期模拟考试《黄金卷三》数学(文)试题
【全国百强校】贵州省凯里市第一中学2019届高三下学期模拟考试《黄金卷三》数学(文)试题2017届辽宁省沈阳市大东区高三质量监测(一模)理数试卷(已下线)第六章 导数与不等式恒成立问题 专题九 双变量不等式恒成立问题 微点5 双变量不等式恒成立问题之单调型、中点型、剪刀型(已下线)专题5 导数与不等式恒成立问题【讲】云南省曲靖市第一中学2016-2017学年高二下学期期中考试数学(理)试题
8 . 设函数
,
.
(1)当
时,求函数
的单调区间及所有零点;
(2)设
,
,
为函数
图象上的三个不同点,且
,问:是否存在实数
,使得函数
在点
处的切线与直线
平行?若存在,求出所有满足条件的实数
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2065b9ce74cbd842ade1b5fefcb7b431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a5c6cfe749b0ece6cc1cf6c2e1a4fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac38d7f6106ba24d837ab72da148b289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c37be2b439328ebffae72b6b9ba609c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-02-08更新
|
664次组卷
|
2卷引用:2017届贵州遵义南白中学高三理上学期联考四数学试卷
名校
9 . 已知函数
.
(1)求曲线
在点
处的切线方程和函数
的极值:
(2)若对任意
,都有
成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/840c8d714b1a6d25b20b3ca97d998d0c.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57760c9389faca44e128ffdcb929c84e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a148092b30e19cd12d22d8f98daab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-13更新
|
1157次组卷
|
2卷引用:2017届贵州遵义市高三上学期期中数学(理)试卷
10 . 函数
,其中
是自然对数的底数,
.
(1)当
时,解不等式
;
(2)当
时,求整数
的所有值,使方程
在
上有解;
(3)若
在
上是单调增函数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67cdaac575603968d325232889f87b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da989240786ef7c3e2d903f30caf59e3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f7000d9103670cb5b65b0aa8be654f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c395237799431ccbd691c17d5c78ac3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaca9c1dac608a386df1848e8459ce9d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6636ade5165582172a1d83c64c9a736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次