设函数f(x)＝2cos

设函数f(x)＝2cos 设函数f(x)＝cos(2x+π3)+sin2x， 设函数f(x)=2cos^2(x+π/6)-cos^2x 已知函数f(x)=cos(2x-π/3)+sin^2x-cos^2x,设函数g(x)=[f(x)]^2+f(x),求g( 设x∈R,函数f(x)=cos(wx+f)(w>0,-π/2 设函数f（x）=cos（x+2/3π）+2cos^2 x/2,x∈R. 设函数f(x)=cos(2x+π/3)+sin^2x-1/2 设函数f(x)=cos(2x+π/3)+sin^2 X 设函数f(x)=cos(2x+π/3)+sin^2x 急.设函数f(x)=cos(2x+π/3)+sin^2 X 设函数f(x)=cos(2x+pai/3)+sin^2x 设函数f(x)=cos(2x+π/3)+sin方x