Question

calcule f(0)e f(2) e f(raiz de 2) sendo f(x)=x/x2-1

Answer 1

f(0)= 0/0^2-1
f(0)=0/-1
f(0)=0

f(2)=2/2^-1
f(2)=2/4-1
f(2)=2/3

f(V2)=V2/(V2)^2-1
f(V2)=V2/2-1
f(V2)=V2/1
f(V2)=V2