满分5 >
高中数学试题 >
定义运算:,将函数f(x)=的图象向左平移t(t>0)个单位,所得图象对应的函数...
定义运算:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934006_ST/0.png)
,将函数f(x)=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934006_ST/1.png)
的图象向左平移t(t>0)个单位,所得图象对应的函数为偶函数,则t的最小值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934006_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934006_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934006_ST/4.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934006_ST/5.png)
考点分析:
相关试题推荐
连续投掷两次骰子得到的点数分别为m、n,作向量a=(m,n).则向量a与向量b=(1,-1)的夹角成为直角三角形内角的概率是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934005_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934005_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934005_ST/2.png)
D.
查看答案
圆x
2+(y+1)
2=3绕直线kx-y-1=0旋转一周所得的几何体的体积为( )
A.36π
B.12π
C.4
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934004_ST/0.png)
π
D.4π
查看答案
在空间中,有如下命题:
①互相平行的两条直线在同一个平面内的射影必然是互相平行的两条直线;
②若平面α∥β,则平面α内任意一条直线m∥β;
③若平面α与平面β的交线为m,平面α内的直线n⊥直线m,则直线n⊥平面β;
④若平面α内的三点A、B、C到平面β的距离相等,则α∥β.
其中正确命题的个数为( )个.
A.0
B.1
C.2
D.3
查看答案
中心在原点,焦点在x轴上的双曲线的实轴与虚轴相等,一个焦点到一条渐近线的距离为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934002_ST/0.png)
,则双曲线方程为( )
A.x
2-y
2=1
B.x
2-y
2=2
C.x
2-y
2=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024182632968893459/SYS201310241826329688934002_ST/1.png)
D.x
2-y
2=
查看答案
函数f(x)=sin
2x的最小正周期为( )
A.π
B.2π
C.3π
D.4π
查看答案