3f(x)+5f(1/x)=2x+1,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)=1/f(x),f(1)=5;问f(f(x))?
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)=_______
已知f(x+1)+2f(-x)=3x²+x,求f(x)
设函数f(x)满足f(x)+2f(1/x)=x,求f(x)
已知函数f(x)满足2f(x/1)-f(x)=x ,x不等于0,则f(x)等于
f(x)=x\1+x 则f(1)+f(2)+f(3)+.f(2010)+f(1\2)+f(1\3)+...f(1\201