1 . 已知函数
,
.
(1)当
时,方程
在区间
内有唯一实数解,求实数
的取值范围;
(2)对于区间
上的任意不相等的实数
、
,都有
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06795fa7f9a27f843c37a90f4918176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c4473159277aed64ea96c4af087954.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443b896b4faf1331f92200511de4b3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38bcfbfb00e74ec92bebf20fc3e2dfef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)对于区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.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/191a9f1cd3402de148664b7fbe7a0c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)是否存在实数a,使函数
在
上单调递增?若存在,求出a的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf645c696ce3d7f2359a26834207a8b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在实数a,使函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5e96c5e5af065b4e49a904f3e61f6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
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解题方法
3 . 设函数
.
(1)求
的极大值点与极小值点;
(2)求
的单调区间;
(3)若
有三个不同等点,求c取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3836a382df470b81506ed5bdea26c2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6353f4d7b72f3e7edc3d00fd91a5d488.png)
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解题方法
4 . 已知函数
,
.
(1)当
时,求
在
上的最大值和最小值:
(2)若
,
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c90e96f8e7df6095652ba7e2bcdf99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c712829d60b4ea93966a5c68c24d677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
您最近一年使用:0次
名校
5 . 已知函数
.
(1)若曲线
在点
处的切线与直线
平行,求
的值,并求函数
的单调区间;
(2)当
时,若对任意
,都有
恒成立,试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7daa8f40105a98cb85e06bee5dcd81.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81158db42116f74e7b26e100f88dd535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9427de5d22d37859a110dbb234313c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3398be7555a103f962b27e3c28db62d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
2020-04-06更新
|
947次组卷
|
2卷引用:陕西省商洛市洛南中学2019-2020学年高二上学期期末数学(文)试题
名校
6 . 已知函数
.
(1)若
,求函数
的单调区间;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5921959f23290c17c6315d11267ac6d6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-03-27更新
|
622次组卷
|
2卷引用:云南省泸西县第一中学2023届高三上学期期末学业质量监测数学试题
7 . 已知函数
.
(1)若
,求函数
的单调区间;
(2)若存在两个不等正实数
、
,满足
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086231e1e7df3d1113c592364557b614.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在两个不等正实数
![](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/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-03-25更新
|
942次组卷
|
4卷引用:2020届浙江省高中发展共同体高三上学期期末数学试题
2020届浙江省高中发展共同体高三上学期期末数学试题湖南省长沙市长郡中学2019-2020学年高二下学期期末数学试题(已下线)冲刺卷01-决战2020年高考数学冲刺卷(山东专版)(已下线)提升套餐练01-【新题型】2020年新高考数学多选题与热点解答题组合练
名校
解题方法
8 . 已知函数
.
(1)求函数
在
上的最大值和最小值;
(2)证明:当
时,函数
的图象在
的图象上方.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00be5681b907f467420fb71dfc82b7ac.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08d9a096b1253a0d451a949027e65e77.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737c165baced95d7095d9f918a9cc110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172aaa8d48bd6ebf9f72297d89822ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
2020-03-24更新
|
329次组卷
|
2卷引用:河南省周口市扶沟县包屯高级中学2019-2020学年高二上学期期末数学试题
解题方法
9 . 已知函数
,
.
(1)若
,当
时,求函数
的极值.
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/733515693c7ecf140d71637c24c14aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e691f234ee5e1cea4e61a8df8795e436.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e8d45695d68490adb223986ab21fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14fe4dcb20914ed2d820ffebb6165fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fce924911d5ed93147dfce9e41c2b0.png)
您最近一年使用:0次
解题方法
10 . 已知函数
.
(1)若
,求函数
的极值;
(2)若
,记
,
,当
,
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74c951c345bc2b0e43cee6ff904438e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4179ccc8c300eb8a1c0c69a01f0f22bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c3e4c682218e7aa5463b62ebaf9c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e300e60be8d1827744cdc01e7d04c840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8542fbe02e78cf3948c9abea9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81d2af35d7ba4e16be11e8c9ba2c56.png)
您最近一年使用:0次