1 . 实数
,
,
.
(1)讨论
的单调性并写出过程;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e96546b3259afe4add331673fb835c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef9a6a8e930ad9eb30c52acef57e1f8.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138472ac217ce3f838b18ce39b39b869.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a548b0cce0dc61272a50f154386d729.png)
您最近一年使用:0次
2 . 已知函数
在
处取得极小值
.
(1)求实数
的值;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687eec4bc7c461e5439659a5c4ff541d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347f27a9c4beb03c9cdd26271cb2a21.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d4018c4e91641f611df930251d00d2.png)
您最近一年使用:0次
2023-08-03更新
|
310次组卷
|
2卷引用:贵州省威宁彝族回族苗族自治县第八中学2023届高三数学(文)冲刺卷(二)试题
解题方法
3 . 已知函数
与
的图象有交点,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2380e6b57c08e7c7505486d60cdc2cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce4381e1716469c88e080d6099fb4f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)当
时,
,求
的取值范围.
(2)若函数
有两个极值点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb093503adb4b91a2008a63ae362a52.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0fe5aa59e7d265b0fb5d3c081b724e.png)
您最近一年使用:0次
解题方法
5 . 已知函数
.
(1)当
时,若
恒成立,求
的取值范围;
(2)若
在
上有极值点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb87adba124be43bb1c7de7b7b6250e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21846a05d46147db4f616a17e7f26ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234a31eb46e97dead9d999f7ecaee467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455c2ad9f68340e9296bce9d91f9eba4.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)讨论
的单调性;
(2)若
有两个极值点
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d4f4137a108cf6babdca62b3c90dbfb.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/3961234abf23f4ea59f8a76efd5a5693.png)
您最近一年使用:0次
7 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe2dd0ca4fe89d046cf7786ddbeb25f.png)
A.![]() | B.![]() |
C.点![]() ![]() | D.曲线![]() ![]() |
您最近一年使用:0次
2023-07-25更新
|
644次组卷
|
3卷引用:贵州省黔西南州兴义市顶效开发区顶兴学校2023-2024学年高三上学期第三次月考数学试题
8 . 已知函数
,
,
是
的导数.
(1)讨论
的单调性,并证明:
;
(2)若函数
在区间
内有唯一的零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c207efd83d75c1f69237d97616c726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e150804223eaec16351db0a3836ce7.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84892a03d0e26712dbf29e28e9985c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
您最近一年使用:0次
名校
9 . 已知函数
.
(1)讨论
的单调性;
(2)若
有两个极值点
,当不等式
恒成立时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85465e3b4984eaf6370f1475b918613b.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd681ed8eddfda65ce49a3fef2a3c496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
10 . 已知函数
.
(1)讨论
的单调性;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bab9295ba157e91ee01a2083b755a049.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31467e7c6f18e972dd8bb886cb6d4cc5.png)
您最近一年使用:0次
2023-07-15更新
|
567次组卷
|
4卷引用:贵州省兴义市顶效开发区顶兴学校2024届高三上学期第一次月考数学试题