名校
1 . 已知函数
(
且
),
(1)若
,且函数
的值域为
,求
的解析式;
(2)在(1)的条件下,当
时,
时单调函数,求实数
的取值范围;
(3)当
,
时,若对于任意
,不等式
恒成立,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2cdec921a1510c92b40b3a6fc2274da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dab6675e9c318ecdaf5e1da96424cd5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c0c037867665979b6dc75fb995f9ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在(1)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa16b780156e18f12baa2b8ee0f9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7863b54185da5a3f1a765e1aa0577e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9d8417be87997804ee32a8b44096b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97ab84192e12bb292bc9fbd0b29fbee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04495a240f86591602c4e3448c73e0e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-01-19更新
|
261次组卷
|
2卷引用:浙江省嘉兴市海盐高级中学2021-2022学年高一下学期返校测试数学试题
2019高一·浙江·专题练习
名校
2 . 设二次函数
满足我们的:
①当
时,
的最大值为0,且
成立;
②二次函数
的图象与直线
交于
两点,且
.
(1)求
的解析式;
(2)求最小的实数
,使得存在实数
,只要当
时,就有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a366c0f71a78d82f50ac7eee9b8af4.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e9a9ad236288e670ea7d944cf44e87.png)
②二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd24f3c4bc9f9a75d4b28630bb630d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求最小的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/007236065c3e14af7e41b314f850bf8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164cca5e390359a6a21fbc495dc521bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2fd48e9eda4f01dfcc017d19c8cc997.png)
您最近一年使用:0次
2020-01-06更新
|
687次组卷
|
3卷引用:浙江省嘉兴一中2019-2020学年高一上学期10月月考数学试题