![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119011_ST/0.png)
的值为
.
考点分析:
相关试题推荐
(长沙)小明的作业本上有以下问题:
(1)
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119009_ST/0.png)
=4a
2,(2)
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119009_ST/1.png)
=5
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119009_ST/2.png)
,(3)a
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119009_ST/3.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119009_ST/4.png)
,(4)
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119009_ST/5.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119009_ST/6.png)
,做错的题是( )
A.(1)
B.(2)
C.(3)
D.(4)
查看答案
已知a<b,则化简二次根式
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119008_ST/0.png)
的正确结果是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119008_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119008_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119008_ST/3.png)
D.
查看答案
把(2-m)
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119007_ST/0.png)
的根号外的因式适当改变后移入根号内,得到( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119007_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119007_ST/2.png)
C.-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119007_ST/3.png)
D.-
查看答案
若a+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131102235924434311969/SYS201311022359244343119006_ST/0.png)
=0成立,则a的取值范围是( )
A.a≥0
B.a>0
C.a≤0
D.a<0
查看答案
Copyright @ 2008-2019 满分5 学习网 ManFen5.COM. All Rights Reserved.