已知函数f(x)=sinx+cos(x-
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),x∈R.
(1)求f(x)的最大值;
(2)设△ABC中,角A、B的对边分别为a、b,若B=2A,且b=2af(A-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100447156316515/SYS201311031004471563165014_ST/1.png)
),求角C的大小.
考点分析:
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