已知向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533986582/SYS201311031024395339865018_ST/0.png)
,其中x∈R,
(1)当
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533986582/SYS201311031024395339865018_ST/1.png)
时,求x值的集合;
(2)设函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533986582/SYS201311031024395339865018_ST/2.png)
,求f(x)的最小正周期及其单调增区间.
考点分析:
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