已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134025_ST/0.png)
求:
(Ⅰ)f(x)的最小正周期;
(Ⅱ)f(x)的单调递增区间;
(Ⅲ)f(x)在
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134025_ST/1.png)
上的最值.
考点分析:
相关试题推荐
已知二次函数f(x) 对任意x∈R,都有f (1-x)=f (1+x)成立,设向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134024_ST/0.png)
=(sinx,2),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134024_ST/1.png)
=(2sinx,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134024_ST/2.png)
),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134024_ST/3.png)
=(cos2x,1),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134024_ST/4.png)
=(1,2).
(1)分别求
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134024_ST/5.png)
的取值范围;
(2)当x∈[0,π]时,求不等式f>f的解集.
查看答案
(理科同学做)已知函数f(x)=Asin(ωx+φ)(A>0,ω>0,|φ|<
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134023_ST/0.png)
)的部分图象如图所示.
(Ⅰ) 求函数f(x)的解析式;
(Ⅱ) 求函数f(x)的对称轴方程与单调递增区间.
查看答案
已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134022_ST/0.png)
,分别求:sin(α+β),cos(α-β),tan(α-β)的值.
查看答案
已知平面上三个向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134021_ST/0.png)
的模均为1,它们相互之间的夹角均为120°.
(1)求证:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134021_ST/1.png)
;
(2)若|k
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134021_ST/2.png)
|>1 (k∈R),求k的取值范围.
查看答案
(文科同学做)在锐角△ABC中,边a,b是方程
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134020_ST/0.png)
的两根,角A、B满足:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100529079813495/SYS201311031005290798134020_ST/1.png)
,求角C,边c的长度.
查看答案