已知f(x)=(sinπx/4)^2-(cosπx/4)^2-2(sinπx/4)*cosπx/4,则f(2014)=

已知f(x)=cos^2x/1+sin^2x求f'(π/4) 已知f(x)=cos^2x+sinxcosx g(x)=2sin(x+π/4)sin(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)=(1+1/tanx)sin(x)^2 -2sin(x+π/4)*cos(x+π/4) 已知函数f(x)=sin^2*x-根号3*sinπ/4*x*cosπ/4*x 已知f(x)=sinx+2sin(π/4+x/2)cos(π/4+x/2). 已知函数f(x)=2sin(x+π/4)cos(x-π/4) 已知函数f(x)=sin²(π/4+x)+cos²x+1/2求最值 已知函数f(x)=4cos(π/2-x)-sin^2(π/4+x/2)+cos^4x-sin^4x 已知函数f(x)=2sin(x/4)cos(x/4)-2√3sin²（x/4)+√3,且g(x)=f(x+π/ 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