求f'(x)

求f'(x) 求f[g(x)] 高中函数题求f(x)求f(x)求f(x)求f(x) F(X)满足F(x)+2f(x分之1)=3X,求f(x) 已知f(x)满足2f(x)+f(1/x)=3x,求f(x) 已知f(x)满足2f(x)+f(1/x)=3x,求f(x)? 设函数f(x)满足f(x)+2f(1/x)=x,求f(x) 已知f(x)满足2f(x)+f(-x)=-3x+1,求f(x) f(x)是一次函数 f[f(x)]=4x-1 求f(x) 求积分∫f'(x)f(x)f(x)f(x)dx 若一次函数f(x) 满足f[f（x)]=1+2x 求f(x) 若一次函数f(x)满足f[f(x)]=1+4x,求f(x)