满分5 >
高中数学试题 >
两直线(m+2)x-y+m=0,x+y=0 与x轴相交且能构成三角形,则m满足的...
两直线(m+2)x-y+m=0,x+y=0 与x轴相交且能构成三角形,则m满足的条件是 .
考点分析:
相关试题推荐
如图,等腰梯形ABCD的底边长分别为6和4,高为3,求这个等腰梯形外接圆半径.
.
查看答案
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452012_ST/images0.png)
已知某几何体的三视图如图所示(单位:cm),则该几何体的体积是
cm
3.
查看答案
已知点A(-3,0,-4),点A关于原点的对称点为B,则|AB|等于( )
A.12
B.9
C.25
D.10
查看答案
已知直线l
1和l
2的夹角平分线为y=x,如果l
1的方程是ax+by+c=0,那么直线l
2的方程为( )
A.bx+ay+c=0
B.ax-by+c=0
C.bx+ay-c=0
D.bx-ay+c=0
查看答案
若直线y=x+k与曲线x=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452009_ST/0.png)
恰有一个公共点,则k的取值范围是( )
A.k=±
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452009_ST/1.png)
B.k∈(-∞,-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452009_ST/2.png)
]∪[
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452009_ST/3.png)
,+∞)
C.k∈(-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452009_ST/4.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452009_ST/5.png)
)
D.k=-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101119467745202/SYS201311031011194677452009_ST/6.png)
或k∈(-1,1]
查看答案