名校
解题方法
1 . 设二次函数
满足条件:①当
时,
的最大值为0,②
成立,③
;
(1)求
的解析式;
(2)求
的解集;
(3)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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](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/2fb19f15fa142fa8be5598817d9c2fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f8721a82629e383f341569e744900d3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8254191c1a35c31aaf03c6410deacf.png)
(3)求最小的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c745e8f00b624bc413e7c77311053179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62bdb1b93999bce4a0808eb64f4ed76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2fd48e9eda4f01dfcc017d19c8cc997.png)
您最近一年使用:0次
2022-11-20更新
|
717次组卷
|
2卷引用:天津市南开大学附属中学2022-2023学年高一上学期期中数学试题
真题
解题方法
2 . 已知
,设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569675dd7b2aca2732324f4bea5c02e1.png)
和
是方程
的两个实根,不等式
对任意实数
恒成立;Q:函数
在
上有极值.求使P正确且Q正确的m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569675dd7b2aca2732324f4bea5c02e1.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/128c1449259e7999fad4fc7a1fe7f0e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6556324566116561f4d35a7ca885ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262d7da8f17131eef23addd1854b170d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491dd24a0f97163282fde7f40677378c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a19bbab2270fc8e694527e801556cf.png)
您最近一年使用:0次