1 . 已知
,(
,
,
),且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75216568cb4d59140c9b2597980e5b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61e241c6c220b3b4705a8c1a465d7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0e3b00fe47801afb53ec56706c21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759b7e549689ddaaedc917af73b7f902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
您最近一年使用:0次
2 . 定义:记
为
这
个实数中的最小值,记
为
这
个实数中的最大值,例如:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8774803290fd7e2b8e5aaded3878e87.png)
,
.
(1)若
,求
、
的值;
(2)已知
,求
的最小值;
(3)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956a34a1f40a8e5ca429db56154a1302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5492f8c6f6ffc3412d316727333a940a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8774803290fd7e2b8e5aaded3878e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2b3b0ca12bc39549b0c3843c1dee61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a6be5ce078006dc2e59d419359e171f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b191787f1c8f50f09fcfdd4f54ad58a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b6487aab21104fcbe96f0ed5675c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db2887bd776156165be9e747cf43b4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
您最近一年使用:0次
名校
3 . 已知函数
在
上恒取正值.则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8762c30e131c72e173fc758896f7d40f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2018-12-27更新
|
603次组卷
|
3卷引用:上海市上海师范大学附属宝山罗店中学2024届高三上学期期中数学试题
4 . 设
,函数
(其中
表示对于
,当
时表达式
的最大值),则
的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae80a8144ab79ee6485e659f988b438b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/593736fba7fcdf5350ea998da25d6d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97f04f61834e015f37b3aa76ac65f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55a98c46abac99f096755eef197e7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95eb850063e3e9a7e687d48eac29afd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
2019-01-28更新
|
225次组卷
|
2卷引用:【校级联考】上海外国语大学闵行外国语、莘庄高中联考2018-2019学年高一(上)期中数学试题
名校
5 . 设函数
(a≠0)满足
,
,
,求当
时
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b501b3d9f1ed6143799e34b45e54742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46006273eb4b084e8fbb46020fb908b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad150b78dc4b86bdcc650d7de2a5209a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac571d2a4938fc8d60b02d72c202fe39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd713a9809d5df1de33c6f11b81eca7.png)
您最近一年使用:0次
2018-12-16更新
|
410次组卷
|
3卷引用:上海市实验中学2019-2020学年高一上学期期中质量检测试卷数学试题
名校
6 . 设
,使不等式
成立的实数
取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3712ce4cde0a2c2f4a3d50ff2caca730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b84654fc32de7cd0ce73843bf9b09c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-12-11更新
|
438次组卷
|
3卷引用:上海市交通大学附属中学2020-2021学年高一下学期期中数学试题
名校
7 . 若不等式
的解集为
,则二次函数
在区间
上的最大值、最小值分别为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d466f06147310b34624ce018cf58d6f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe2283d104437709bc336d139789251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79fd40daa0af9627c9defbfb5a2c2837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2018-12-15更新
|
191次组卷
|
3卷引用:山东省济宁市鱼台县第一中学2019-2020学年高一上学期期中数学试题