已知函数f(x)= 1 2 co s 2 x+ 3 2 sinxcosx+1(x∈R) , 求:(1)函数f(x)的最周期、最值及取得最值时相应的x值; (2)该函数的图象可由函数y=sinx的图象经过怎样的平移和伸缩变换而得?
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