f(x)+2f(1/x)=2x+1,求f(x)

f(x)满足:2f(x)-f(1/x)=x+1,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(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) , 2f(x^2)+f(1/x^2)=f(x),求f(x) 若一次函数f(x) 满足f[f（x)]=1+2x 求f(x) f(x)=x/(1+x^2)^0.5求f(f(f(x))) f(x)+f((x-1)/x)=2x; x!=0,1; 求f(x) f(x)+f[(x-1)/x]=2x x不等于0,1.求f(x). 导数：f(x+y)=f(x)f(y),且f'(o)=1,求f'(x)f(x+y)=f(x)f(y),且f'(o)=1,求f'(x)f(x+y)=f(x)+f(y)+2xy,且f'(o)存在,求f'(x) f(1+x)=af(x),且f'(0)=b,求f'(1) f(1+x)+2f(1-x)=3x^2 求f(x)f(1+x)+2f(1-x)=3x^2求f(x) 求导数 已知f(x)=(x-1)^2,求f'(X) f'(0) f'(2) f(x)=sin60度X,求f(1)+f(2)+f(3)+.f(2010) f(2x+1)=e^x,求f(x) 已知f(x+1)=x^2,求f(x)