f(x)=(x-1)(x-2)(x-3).(x-n)的导数有几个实根?

已知f(x)满足2f(x)+f(1/x)=3x,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(-x)=-3x+1,求f(x) 已知f(x)满足f(x)+2f(1/x)=3x,求f(x) , f(x-1)=x^2-2x+3(x f(x)=(x-1)(x-2).(x-3)求导 f(x)=5x+3 f(x)=5x f(x)=x+2x+1 f(x)=5x+3 f(x)=5x f(x)=x+2x+1 已知函数f(x)=x^3+x^2-2x-x,f(1)f(2) 设f(x)={3x-1,x=0,求f(-x),f(x-2). f(x+1)+f(x-1)=4x^3-2x求f(x) 已知f(x+1/x-1)=3f(x)-2x,求f(x) 已知f(x)+2f(1/x)=x+2/x+3,求f(x) F(x)=3x^2+2x-1 求F(x+△x)-f(x)/ △x f(x)+2f(1/x)=3x f(1+x)+2f(1-x)=3x^2 求f(x)f(1+x)+2f(1-x)=3x^2求f(x) f(x)={2x+1,x f(x)={1+x/2,x