名校
1 . 已知二次函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
(1)若
且
,是否存在实数
,使当
时,
为正数?
(2)若
,
,且方程
有两个不等的实根.证明:必有一实根在
与
之间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844dcd62391165df7695930c744cfe4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98526b536508e9bc90e2934d51b72481.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dec7db763dddc467ab89be90106ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360880b267f405ee5900bcbda6c9576b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9401086c915b877d7b14eb26215f9f73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
您最近一年使用:0次
2019-08-14更新
|
794次组卷
|
2卷引用:新疆维吾尔自治区克拉玛依市第十三中学2018-2019学年高一上学期8月月考数学试题
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ddbc1b0656c877ca2b0e64179ad81a9.png)
(Ⅰ)若
在
处的切线与直线
垂直,求实数
的值;
(Ⅱ)当
时,求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ddbc1b0656c877ca2b0e64179ad81a9.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2600a54b7bf3f79aaec7d49a47f6b4d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e496dc92bf937801cca1cb9bf2e1038e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0930435da69cc8acb790f4b3543ffea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4252b061a3221455429b0639b30feb01.png)
您最近一年使用:0次
名校
3 . 已知函数
(
为自然对数的底数).
(Ⅰ)求函数
的单调区间;
(Ⅱ)若
,
,试求函数
极小值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71e8aa74829ff4df3f13c400cfca55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00210f79b04a8f6bc1922433d00bc89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2019-01-31更新
|
2029次组卷
|
7卷引用:【市级联考】安徽省合肥市2019届高三第一次教学质量检测数学理试题
【市级联考】安徽省合肥市2019届高三第一次教学质量检测数学理试题【市级联考】安徽省合肥市2019届高三一模数学(理)试题2020届陕西省西安中学高三第二次模拟数学(理)试题(已下线)专题03 利用导数求函数的极值、最值(第六篇)-备战2020年高考数学大题精做之解答题题型全覆盖安徽省安庆七中2020届高三下学期仿真模拟冲刺卷(二)数学(文)试题河北正中实验中学2021届高三上学期第二次月考数学试题新疆乌鲁木齐市第六十一中学2024届高三上学期12月月考数学试题