满分5 >
高中数学试题 >
在点O处测得远处质点P作匀速直线运动,开始位置在A点,一分钟后到达B点,再过一分...
在点O处测得远处质点P作匀速直线运动,开始位置在A点,一分钟后到达B点,再过一分钟到达C点,测得∠AOB=90°,∠BOC=30°,则tan∠OAB=( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942002_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942002_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942002_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942002_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942002_ST/3.png)
考点分析:
相关试题推荐
设D为△ABC的边AB的中点,P为△ABC内一点,且满足,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942001_ST/0.png)
,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942001_ST/1.png)
=( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942001_ST/images2.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942001_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942001_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904494286/SYS201311012248099044942001_ST/4.png)
D.
查看答案
已知集合M={a,b,-(a+b)},a∈R,b∈R,,集合P={1,0,-1},映射f:x→x表示把集合M中的元素x映射到集合P中仍为x,则以a,b为坐标的点组成的集合S有元素( )个.
A.2
B.4
C.6
D.8
查看答案
设二次函数f(x)=ax
2+bx+c在区间[-2,2]上的最大值、最小值分别是M、m,集合A={x|f(x)=x}.
(1)若A={1,2},且f(0)=2,求M和m的值;
(2)若A={1},且a≥1,记g(a)=M+m,求g(a)的最小值.
查看答案
已知向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904334210/SYS201311012248099043342021_ST/0.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904334210/SYS201311012248099043342021_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904334210/SYS201311012248099043342021_ST/2.png)
,x∈[0,π].
(1)当
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904334210/SYS201311012248099043342021_ST/3.png)
时,求
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904334210/SYS201311012248099043342021_ST/4.png)
及
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904334210/SYS201311012248099043342021_ST/5.png)
的值;
(2)求
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224809904334210/SYS201311012248099043342021_ST/6.png)
(m∈R)的最大值.
查看答案
已知f(x+1)=x
α(α为常数),且函数y=f(x)的图象经过点(5,2).
(1)求f(x)的解析式;(2)用单调性定义证明y=f(x)在定义域内为增函数.
查看答案