Question

calcular o limite
lim x+4/x+2
x-> -2

Answer 1

lim x+4/x+2
x-> -2
=
x(1+4/x) / x(1+2/x)=
1+4/x /1+2/x=
(x+4/x )/(x+2/x)=
(-2+4/-2) / (-2 + 2/-2)=
(-2-2) / (-2-1)=
-4 / -3= 4/3