1 . 设函数
,其中
.
(1)若
,求
在
上的最大值;
(2)已知
满足对一切实数x均有
,求函数
的值域;
(3)若
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97306b2fb2023559e74fd632d4325ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0729eb6f1f14582b37b5cdcdda2c5c5a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c01ef6036d39379287b6444b3446ada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d19e8dd827a3c1a4dea84f385b02813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd95ae33c06d271d7e1fe1557a707e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9085a9b1ceed4ab947c21669e85c5f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
.
(1)当
,且
时,求
的值;
(2)若存在实数
,使得函数
的定义域为
时,其值域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870a7e1c6303c19ce3e86368ee2f8f21.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aba934874cc9f2ab272fdff67ea23bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7266b2ef457b8ddeee3fa2cc24022e.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47af1ee63d6925c4cb2b6ede44c5669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8af7bed124f00c8e19b52d028b4d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
3 . 已知函数
,其中实数
.
(1)当
时,
的最小值为2,求实数a的值.
(2)记
,设
,若
恒有解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14275d11fea7cb0df61a50f8415bb1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095c5f7a3c6917839c01fd1e5654ee91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe32b32e32d59155649fe6e1979201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f66fd3129db024daf48dfd8c4673a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f2b3006c8a2784e51e57e30e22ea9e.png)
您最近一年使用:0次
2022-06-25更新
|
436次组卷
|
5卷引用:浙江省温州市十五校联合体2021-2022学年高二下学期期末联考数学试题
浙江省温州市十五校联合体2021-2022学年高二下学期期末联考数学试题河北省廊坊市第十五中学2022-2023学年高一上学期第二次月考数学试题(已下线)专题02 恒成立、能成立问题 (1)(已下线)专题3.6 函数的概念与性质全章八类必考压轴题-举一反三系列山东省烟台市中英文学校2023-2024学年高一上学期期中考试数学模拟试题
名校
解题方法
4 . 已知函数
.
(1)当
,且
时,求
的取值范围;
(2)是否存在正实数a,
,使得函数
在
上的取值范围是
.若存在,则求出a,b的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5663c187aa4e5fdfd1dd28895872ce37.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aba934874cc9f2ab272fdff67ea23bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e9085aa49e1771ddcd9c327aba486b.png)
(2)是否存在正实数a,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f9fcab2886322d40bb5b52d997984fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c80c2b55996f6735f5089581f632672.png)
您最近一年使用:0次
2022-02-27更新
|
874次组卷
|
5卷引用:浙江省台州市书生中学2021-2022学年高二下学期学考阶段测数学试题
名校
5 . 已知函数
.
(1)若
,写出
的单调区间(不要求证明);
(2)若对任意的
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f791f695ad78d5de5d81f40f7fa517.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4517014d118808e6398795e2d8aeee5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee569e5527a64ac6d56bb8b8e034250b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2020-09-19更新
|
284次组卷
|
3卷引用:浙江省名校协作体2020-2021学年高二上学期开学考试数学试题
名校
解题方法
6 . 设
,已知函数
.
(1)当
时,写出
的单调递增区间;
(2)对任意
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c54318ac2b45c542aec2c5ebe64d419.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f417f76e2e7eb5231d8e90fb85c5b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a6f8b2fd5a408a1d13549bae9a24b3.png)
您最近一年使用:0次
2020-03-14更新
|
789次组卷
|
5卷引用:浙江省2019年6月普通高中学业水平考试数学试题1
浙江省2019年6月普通高中学业水平考试数学试题1(已下线)浙江省2019年6月普通高中学业水平考试数学试题浙江省金华市曙光学校2019-2020学年高二下学期第一次月考数学试题浙江省温州中学2019-2020学年高二上学期开学考试数学试题(已下线)【新东方】高中数学20210323-011【高一下】
7 . 已知函数
,
,设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b9ec91decda4ebfd6fbda8405e7055.png)
(Ⅰ)求函数
的解析式;
(Ⅱ)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8f4b2fd9545cda3a4eca7caa091484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681d6d27b23b1c41834d7516122f73f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b9ec91decda4ebfd6fbda8405e7055.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(Ⅱ)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0285df85adab3d5bddeafe62cd167a23.png)
您最近一年使用:0次
13-14高二下·浙江温州·期末
解题方法
8 . 已知函数
,
,
.
(1)当
时,求函数
的最小值;
(2)若函数
的最小值为
,令
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/1358f9360ab04db79b4e3df661f2bd2e.png)
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/3daa81d98fdf456895f38524a90521c1.png)
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/9f65c684e95646f49d196474b48199ff.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/1e3731ed98ef4e2aabbd51cbaf7a5578.png)
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/1552fa038ff1407bb703d149c3d86753.png)
(2)若函数
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/1552fa038ff1407bb703d149c3d86753.png)
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/67d8aa65bfb9493796a1682974cf3bac.png)
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/628454f2ee744764a2a8500a60a9d2bb.png)
![](https://img.xkw.com/dksih/QBM/2014/9/2/1571848716255232/1571848722227200/STEM/4c06c2e7dddb4830a346fed415b01ad4.png)
您最近一年使用:0次