Question

Sendo f (x) =3x-1
x2+1
Calcole
a) f (2) b)f (-1) c)(1) +f (3) ?

Answer 1

a) (3.2)-(1.2.2)+1= 3
b) (3.-1)-(1.-1.2)+1=-4
c) (3.1)-(1.1.2)+1 + (3.3)-(1.3.2)+1=6