设f(x)=cos(xπ/2010),则f(1)×f(2).f(2010)=

设f(x)=cos(xπ/2010),则f(1)×f(2).f(2010)= 设函数f(x)=cos(x-17π/2）,则f(x)等于 设f(sin x)=3-cos 2x,则f(cos x）=? 设f(cos^2x)=sin^2x,则f'(π/4)等于, 设x∈(0,π),则f(x)=cos²x+sinx的最大值是多少? 设函数f(x)可导,则 [sin f(x)]'= (A)sin f'(x) (B)cos f'(x) (C)f'(x)cos f(x) (D)f(x)cos f'(x) 设2f(x)cos x=d/dx [f(x)]²,f(0)=1,则f(x)= 一道 三角题 急求解题过程设f(x)满足2f(sin x)+3f(cos x)=2cos x,则f(x)=______. 设函数f(x)=arc sin(cos(x)),则f(f(f(x)))的最小正周期为? 设x∈R,函数f(x)=cos(wx+f)(w>0,-π/2 设f(2sinx-1)=cos^2x,则f(x)的定义域为 设函数f(x)=cos x则f'(兀/2)等于? 设x∈（0,π）,则f（x）=cos²x+sinx的最大值是 设f(x)=e^3x-1×cos(2πx+π/3),求导数 设f(sinx)=cos2x+1求f(cos*x) 设函数f (x)=cos(2x-π/3)-2sin平方x (1)求函数f(x 设函数f(x)=cos(2x-π/2) x属于R则f(x)的周期和奇偶性是? 设f(x)=cos x.证明(cos x)'=-sin