f(x)=2√3sinxcosx-cos2x=√3sin2x-cos2x=2(sin2x*√3/2-cos2x*1/2)=2sin(2x-π/6)x=π/12;函数f(x)的图象可以由函数y(x)=2sin2x的图象经过右平移π/12得到；若x∈(-π/4,π/4)求函数f(x)的值域,x∈(-π/4,π/4),2x...