名校
1 . 已知
.
(1)求
的单调区间及极值;
(2)(i)
恒成立,求a的取值范围;
(ii)证明
时,
;
(3)
时,
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8830a1a93d3958583f63c4c89f73223a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
(ii)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c865fc7e9f9538b1391a6adbadb111bd.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
您最近一年使用:0次
名校
2 . 函数
(a,
),下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ceea9d135b90f75c765733582c99b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() |
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2024-04-16更新
|
376次组卷
|
3卷引用:黑龙江省哈尔滨市第六中学2023-2024学年高二下学期期中考试数学试卷
黑龙江省哈尔滨市第六中学2023-2024学年高二下学期期中考试数学试卷山东学情2023-2024学年高二下学期第一次阶段性调研数学试题(A卷)(已下线)专题11 不等式恒成立、能成立、恰好成立问题(过关集训)
名校
3 . 已知
,若
恒成立,则不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1530ee7cf65abc51d7200c25a7ef4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
A.![]() ![]() |
B.方程![]() |
C.若函数![]() ![]() ![]() |
D.过![]() ![]() |
您最近一年使用:0次
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解题方法
4 . 已知函数
.
(1)当
时,求函数
的最小值;
(2)若对于
,不等式
恒成立,求实数a的取值范围.(参考数据
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1e4d5985e1f56bfef3d73d1034394d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8850a560b22e3dd7c7a4e08232b258cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827b9e4b3d9c5dbef7b6b558960feaa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12a76edbb3e98e3ff41c03401769d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50101047632b94dcd5cf8035b093cc5.png)
您最近一年使用:0次
5 . 已知函数
.
(1)若
,求
的图象在点
处的切线方程;
(2)若
在区间
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f66891d307bae4eb784b212ce49595.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b680f82d5ee3804b1fa103044347956c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31d4e0c338a1027f89e8b9179c26e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-11-01更新
|
443次组卷
|
3卷引用:黑龙江省海林市朝鲜族中学2023-2024学年高三上学期10月大联考数学试题
名校
解题方法
6 . 已知函数
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77f45636291e3bde015e3ffd1504895.png)
A.![]() ![]() |
B.若不等式![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
7 . 已知函数
,
,且曲线
和
在原点处有相同的切线.
(1)求实数a的值:
(2)证明:当
时,
;
(3)令
,且
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82677d95bc109795e16401461dc6467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591d032abe536b6bfc4e04104dc921bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(1)求实数a的值:
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9e96e2ed7d9cd25c06f9a51a7210a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d3ac6f2ecceac9566cdc98752ba2fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343143dd8a6ce47f1ea1a32478a8a49e.png)
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2023-10-24更新
|
383次组卷
|
2卷引用:黑龙江省大庆市大庆实验中学2021年高三上学期10月月考数学试题
名校
8 . 已知函数
.
(1)若对任意的
,不等
恒成立,求实数a的取值范围;
(2)讨论函数
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6d535aaf1ed1259b7ee3edfaf48882.png)
(1)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d80696c68bd1d57755ae3bea4b2f329.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
9 . 已知函数
.
(1)当
时,求
的单调区间;
(2)当
时,若不等式
恒成立,求
的取值范围;
(3)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae19d7b49be015e2ef80f1ddc78378a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc895959e9bc92294dc9dd2263dbf0c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8d5e61351e8a57f702e9ae66d146d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68207a3154bd827a6647075efda61f70.png)
您最近一年使用:0次
2023-10-07更新
|
735次组卷
|
4卷引用:黑龙江省哈尔滨市第九中学校2023-2024学年高三上学期期中数学试题
10 . 已知函数
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc9aa044c749310cbe93c921b13a5a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcc182b890082aebdf14f2eeba2b56f.png)
A.![]() ![]() | B.![]() |
C.若![]() ![]() | D.![]() |
您最近一年使用:0次