考点分析:
相关试题推荐
如果
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764001_ST/0.png)
是二次根式,那么x应满足的条件是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764001_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764001_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764001_ST/3.png)
D.
查看答案
下列根式
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764000_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764000_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764000_ST/2.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764000_ST/3.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764000_ST/4.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000918209076451/SYS201311030009182090764000_ST/5.png)
中,最简二次根式的个数是( )
A.2个
B.3个
C.6个
D.5个
查看答案
如图,在Rt△ABC中,∠B=90°,AB=6cm,BC=3cm,点p从点A开始沿AB边向点B以1cm/s的速度移动,点Q从点B开始沿BC边向点C以2cm/s的速度移动,如果p、Q两点同时出发,几秒钟后,p、Q间的距离等于
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000910476927700/SYS201311030009104769277023_ST/0.png)
?
查看答案
已知关于x的一元二次方程x
2-6x+k=0有两个实数根.
(1)求k的取值范围;
(2)如果k取符合条件的最大整数,且一元二次方程x
2-6x+k=0与x
2+mx-1=0有一个相同的根,求常数m的值.
查看答案
如图,⊙O的半径为13cm,弦AB∥CD,两弦位于圆心O的两侧,AB=24cm,CD=10cm,求AB和CD的距离.
查看答案