1 . 已知a,b,c均为正数,且
,
,
,则a,b,c的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3327226d812294303c5404ffa9da486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b084ffb7530c2a533a361ba23ff2b4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b123e612a632ef6f8e8ea965d4acc408.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-04-15更新
|
594次组卷
|
3卷引用:四川省遂宁市2024届高三第二次诊断性考试数学(理)试题
2 . 设函数
,
.
(1)求函数
的单调性区间;
(2)设
,证明函数
在区间
上存在最小值A,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5e98799e6f99f62aea0aadba6aa0db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af73fbde75b6605651d86bd43f8f4fda.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd94fd06825f3c25bd006880ef6ee79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a1e8b2051cf2e16777ec83b8e286cf.png)
您最近一年使用:0次
3 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)若
,
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89bf6fb954d7d6a1601c9100bafefda7.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626d21f09396d90862704dcf2462d885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a4305a4a15ee833993513be128cd80.png)
您最近一年使用:0次
名校
4 . 设
.
(1)求函数
的单调区间和极值;
(2)若关于x不等式
在区间
上恒成立,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f52efa1028c78aab888cb3f4f3ecf42.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3412b3032b48a41809613f89968a7857.png)
(2)若关于x不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a3713bb22838d9432c9e484c537e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
您最近一年使用:0次
名校
5 . 已知函数
.
(1)若
是
上的单调递增函数,求
的取值范围;
(2)当
时,
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be0cf2663917582f09bc11e150b3a969.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5374bfc463f980d9dab1ffda5f59885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2024-04-10更新
|
664次组卷
|
2卷引用:四川省宜宾市2024届高三下学期第二次诊断性考试文科数学试卷
名校
6 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)设
,求函数
的极大值;
(3)若
,求函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e712fd8e9a66a77132794a2d7c215d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a630ae65a7d8a8ecdc0a540ad5b688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757e183e8ecf5368d59fe6e6d41ab92d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2024-04-10更新
|
1799次组卷
|
5卷引用:四川省仁寿第一中学校南校区2023-2024学年高二下学期4月阶段性检测数学试题
名校
7 . 已知
,函数
有两个极值点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745517e274454ede1c2169e1b3cd263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
A.![]() |
B.![]() ![]() ![]() ![]() |
C.![]() |
D.![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-04-10更新
|
533次组卷
|
2卷引用:四川省遂宁市射洪中学校2023-2024学年高二下学期第一次学月质量检测(4月)数学试题
名校
8 . 已知关于
的不等式:
的解集为
,则
的最大值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ab5a4673bd2d39ec743fa2ed93ce6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2628e2dd7a988cc80530e739c22b2280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e5c23c9d28b7fb4d95af6f1bb12dba.png)
您最近一年使用:0次
9 . 已知函数
.
(1)当
时,求
的单调递减区间;
(2)若
有两个极值点
,
(
).
①求实数b的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dcbfc01a30265d01acfa665daf72da3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](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/26d8dafc71b106f39f4e15442220897b.png)
①求实数b的取值范围;
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c1239e82dc69ad3f0f4eb27ac44d48.png)
您最近一年使用:0次
解题方法
10 . 已知函数
.
(1)若
只有一个极值点,求实数
的取值范围;
(2)若
在
处取得极值
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2711613a8be069beb7b286855e29590c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdc6e6a0e6584bea7deb91b0841fa28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8d8b1c04358bacef66001e274d6b72.png)
您最近一年使用:0次