2f(x)-f(-x)=x+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)?
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(-x)=-3x+1,求f(x)
1.已知f(x)+2f(1/x)=2x+1,求f(x)
f(X)=f(X+2)(x
若一次函数f(x) 满足f[f(x)]=1+2x 求f(x)
一次函数f(x)满足f [f(x)] =1+2x,求f(x)
1.若f(x+1/x)=x^2+1/x^2,求f(x)
已知f(x-1)=x^2,求f(x)
若f(x)=2f(1/x)=2x+1/x,求f(x)