若函数f(x)满足f(x-1/x)=x²+1/x+1,求f(根号2-1)

问题描述:

若函数f(x)满足f(x-1/x)=x²+1/x+1,求f(根号2-1)

令x-1/x=根号2-1,求的x,代入x^2+1/x+1=9/2