2f(x)+f(-1/x)=3x+1,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)?
已知f(x)满足2f(x)+f(-x)=-3x+1,求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)
f(x)=sin60度X,求f(1)+f(2)+f(3)+.f(2010)
F(x)=3x^2+2x-1 求F(x+△x)-f(x)/ △x
f[(3x+2)/2x-1]=x^2-1,求:f(1),f(x)
f(x+1)=2x平方-3x+1,求f(-1),f(x-1)
若3f(x-1)+2f(1-x)=2x,求f(x)
3f(x-1)+2f(1-x)=2x 求 f(x)