设f(cos^2x)=sin^2x,则f'(π/4)等于,

设f(x)=sin(x/2)+cos(2x),f(π)的27阶导数 设f=[sin(2/x)]=1+cosx,求f(x),f[cos(2/x)]. 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( 已知f(x)=sin(xπ/2)+cos(xπ/2),则f(1)+f(2)+．．．+f(2007)+f(2008)等于 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+π/3)+sin方x 1.设函数f(x)=cos(2x+π/3)+sin(平方)x 设函数f(x)=cos(2x+π/3)+sin²x 设函数f(x)=cos(2x+π/3)+sin²X