化简f(x)=2cos(x/2)·(sin(x/2)+cos(x/2))-1

化简f(x)=2cos(x/2)·(sin(x/2)+cos(x/2))-1 求导f(x) = cos(3x) * cos(2x) + sin(3x) * sin(2x). 已知f(x)=sin(x/2) + cos(x/2) +[cos(x/2)]^2-1/2 已知函数f(x)=2Cos x(Sin x-Cos x)+1 f(x)为奇函数,x>0,f(x)=sin 2x+cos x,则x 2cos x (sin x -cos x)+1 f(x)=cos(2x-派/3)-2sin x*cos (派/2+x) 已知f(x)=cos(x/2)[sin(x/2)-cos(x/2)],其导为? 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tan=2,求(cos x+sin x)/(cos x-sin x)+sin^2x 化简y=sin^2(x)+2sin(x)cos(x)+3cos^2(x)