3f(x)+2f(1/x)=3x则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)? 已知f(x)满足2f(x)+f(-x)=-3x+1,求f(x) f(x+2)>=f(x)+2,f(x+3) 3f(x)+2f(1/x)=2x,则f(x)=? 已知f(x)满足2f(x)+f(1/x)=3x,则f(x)= f(x)满足f(x)+2f(1/x)=3x,则f(x)=_______ f(x)+2f(-x)=3x+x的平方,则f(x)等于 已知f(x+1)+2f(-x)=3x²+x,求f(x) f(x)=x(x-1)(x-2)(x-3)(x-4) f'(1)=? f(x)=x2－3x,则f(2x－1) =______,f[f(x)]=_____