已知函数f(x)=cos(2x+π/6)-2sin^2(x+π/4)
已知函数f(x)=sin(2x+π/6)+sin(2x+π/6)+2cos²x
已知函数f(x)=cos(2x-π/3)+sin^2 x-cos^2 x
已知函数f(x)=cos(2x-π\3)+sin²x-cos²x
已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4)=sin(2x-π/6) ,
已知函数f(x)=2sin(x+π/4)cos(x-π/4)
已知函数f(x)=cos^2(x-π/6)-sin^2x化简
已知函数f(x)=sin(2x-π/6)+cos^2 x
已知函数f(x)=sin²(π/4+x)+cos²x+1/2求最值
已知函数f(x)=cos(2x+π/6)-2sin^2(x+π/4)
已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4)
已知函数f(x)=sin(2x+π/6)+sin(2x-π/6)+2cos²x
已知函数f(x)=sin(2x+π/6)+sin(2x-π/6)+2cos²x