1 . 已知函数f(x)=x2+ax+b(a,b∈R)的值域为[0,+∞),若关于x的不等式f(x)<m的解集为(c,c+2
).
(1)求实数m的值;
(2)若x>1,y>0,x+y=m,求
+
的最小值.
![](https://img.xkw.com/dksih/QBM/2016/3/9/1572527980961792/1572527987081216/STEM/ce80e000d5b046f9b24cb804623a7ae4.png)
(1)求实数m的值;
(2)若x>1,y>0,x+y=m,求
![](https://img.xkw.com/dksih/QBM/2016/3/9/1572527980961792/1572527987081216/STEM/d7b9fc26b14944c688161419613c605a.png)
![](https://img.xkw.com/dksih/QBM/2016/3/9/1572527980961792/1572527987081216/STEM/a524b6be6dec448099636bf4d3792d6f.png)
您最近一年使用:0次
2014·江苏南京·三模
名校
2 . 已知函数
.
(1)若曲线
过点
,求曲线
在点
处的切线方程;
(2)求函数
在区间
上的最大值;
(3)若函数
有两个不同的零点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1fa33e23d65dd5c2e4a1085d290a36e.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c3316c2f17c0b3a99cc520b6aaa711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811c6fbc93bafee69ded75316ef05122.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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/3008053cbc94bcbf9f9986a592aca495.png)
您最近一年使用:0次
2016-12-02更新
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1549次组卷
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7卷引用:2017届山西运城市高三上学期期中数学(理)试卷