满分5 >
初中数学试题 >
若单项式-3x4a-by2与3x3ya+b是同类项,则这两个单项式的积为 .
若单项式-3x4a-by2与3x3ya+b是同类项,则这两个单项式的积为 .
考点分析:
相关试题推荐
请写出1个夹在2011和2012之间的无理数
.
查看答案
对于锐角α,若cotα=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348010_ST/0.png)
,则cot45°=
.
查看答案
如图,直线y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348009_ST/0.png)
x+3交x轴于A点,将一块等腰直角三角形纸板的直角顶点置于原点O,另两个顶点M、N恰落在直线y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348009_ST/1.png)
x+3上,若N点在第二象限内,则tan∠AON的值为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348009_ST/images2.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348009_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348009_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348009_ST/4.png)
D.
查看答案
如图是正方体盒子的表面展开图,则下列说法中错误的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348008_ST/images0.png)
A.当折叠成正方体纸盒时,点F与点E,C重合
B.过点A、B、C、D、E、F、G七个点中的n个点作圆,则n的最大值为4
C.以点A、B、C、D、E、F、G中的四个点为顶点的四边形中平行四边形有2个
D.设图中每个小正方形的边长为1,则能覆盖这个图形的最小的圆的直径为
查看答案
如图,抛物线y=ax
2与反比例函数
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348007_ST/0.png)
的图象交于P点,若P点横坐标为1,则关于x的不等式
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348007_ST/1.png)
>0的解是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101192922644934866/SYS201311011929226449348007_ST/images2.png)
A.x>1
B.x<-1
C.-1<x<0
D.0<x<1
查看答案