满分5 >
高中数学试题 >
直线y=kx与曲线y=e|lnx|-|x-2|有3个公共点时,实数k的取值范围是...
直线y=kx与曲线y=e|lnx|-|x-2|有3个公共点时,实数k的取值范围是 .
考点分析:
相关试题推荐
由命题“存在x∈R,使x
2+2x+m≤0”是假命题,则实数m的取值范围为
.
查看答案
已知定义域为R的函数f(x)是奇函数,当x≥0时,f(x)=|x-a
2|-a
2,且对x∈R,恒有f(x+1)≥f(x),则实数a的取值范围为( )
A.[0,2]
B.[-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098011_ST/0.png)
]
C.[-1,1]
D.[-2,0]
查看答案
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098010_ST/images0.png)
如图是函数f(x)=x
2+ax+b的部分图象,则函数g(x)=lnx+f′(x)的零点所在的区间是( )
A.(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098010_ST/0.png)
)
B.(1,2)
C.(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098010_ST/1.png)
,1)
D.(2,3)
查看答案
一条长为2的线段,它的三个视图分别是长为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098009_ST/0.png)
的三条线段,则ab的最大值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098009_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098009_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098009_ST/3.png)
D.3
查看答案
点P到点
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098008_ST/0.png)
及到直线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098008_ST/1.png)
的距离都相等,如果这样的点恰好只有一个,那么a的值是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098008_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098008_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124017969509870/SYS201310251240179695098008_ST/4.png)
D.
查看答案