满分5 >
高中数学试题 >
已知点(x,y)满足约束条件,若函数f(x)=loga(x2+1)(a>0且a≠...
已知点(x,y)满足约束条件
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803008_ST/0.png)
,若函数f(x)=log
a(x
2+1)(a>0且a≠1)图象通过的定点是(m,n),则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803008_ST/1.png)
的最大值为( )
A.1
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803008_ST/2.png)
C.2
D.4
考点分析:
相关试题推荐
已知等差数列{a
n}的前n项和为S
n,若S
17=170,则a
7+a
9+a
11的值为( )
A.10
B.20
C.25
D.30
查看答案
与直线x-y-4=0和圆x
2+y
2+2x-2y=0都相切的半径最小的圆的方程是( )
A.(x+1)
2+(y+1)
2=2
B.(x+1)
2+(y+1)
2=4
C.(x-1)
2+(y+1)
2=2
D.(x-1)
2+(y+1)=4
查看答案
一个几何体的三视图及其尺寸(单位:cm)如图所示,则该几何体的侧面积为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803005_ST/images0.png)
A.48cm
2B.80cm
2C.100cm
2D.144cm
2
查看答案
已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/0.png)
、
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/1.png)
是不共线的向量,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/2.png)
=λ
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/3.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/4.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/5.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/6.png)
+μ
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803004_ST/7.png)
(λ,μ∈R),那么A、B、C三点共线的充要条件为( )
A.λ+μ=1
B.λ-μ=1
C.λμ=-1
D.λμ=1
查看答案
对任意非零实数a、b,规定a⊗b的运算原理如图所示,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803003_ST/0.png)
=( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803003_ST/images1.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803003_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212138863780329/SYS201310232121388637803003_ST/2.png)
C.1
D.-1
查看答案