解题方法
1 . 已知函数
,若方程
恰有两个不同的解,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edeed5845f1a40314933e190e261742e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa5a02d82cfaeb63600de8f3fc4eb5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-05-27更新
|
659次组卷
|
2卷引用:云南省昆明市2017届高三5月复习适应性检测数学(理)试题
12-13高二下·云南玉溪·期末
2 . 已知二次函数
的导数
,且
的值域为
,则
的最小值为
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516538667008/1571516544180224/STEM/1b9fd8ffa2254d0cb964603947191c90.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516538667008/1571516544180224/STEM/d4e03f2512c340c696d451781923946f.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516538667008/1571516544180224/STEM/299495a403034621abb690a7eef25c50.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516538667008/1571516544180224/STEM/1b111a0e0caa4883a00321033ea0de0b.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516538667008/1571516544180224/STEM/ddd9fa00c5f64f06ad8c70f196fa981c.png)
A.3 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
解题方法
3 . 设函数
为常数
,若方程
的根都在区间
内,且函数
在区间
上单调递增,则
的取值范围是
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421897945088/STEM/a1221035070344efb705df93845ffd29.png)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421897945088/STEM/e574450be54d45e4a201f74a63379c13.png)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421897945088/STEM/d642184f74e24645bb90c06df0bb6d31.png)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421897945088/STEM/d77c1584a2bd4ba482078ce56ba04457.png)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421897945088/STEM/fd004df5c5b94bbf8ca57ed9ff08d57b.png)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421897945088/STEM/b07c34d7375b466fa48ada4a2216b671.png)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421897945088/STEM/9c3ccdfa236d48df8a94ed0d2b01dcbf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
584次组卷
|
3卷引用:2016届云南师范大附中高考适应性月考三理科数学试卷
4 . 设函数
,其中
,
,存在
使得
成立,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0663206a2258334731ad0c1bc045ab5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7fde71807463dbdfd8fce1655a5a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08d2203f96de4de7d62e06f93c010b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d31e828bfe124ebe3adc0eaee29d6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次