Respuesta :

Panoyin
f(x) = ㏑(x² - 4)

Domain: {-2 ≤ x ≤ 2}, or [-2, 2]
Ver imagen Panoyin
caylus
Hello,

A ln must have like argument a positive number.

x²-4>0 whose roots are 2 and -2.
To be positive,  the value of must be exterior of the roots


so -infinity<x<-2 or 2<x<infinity

Dom f(x)=IR - [-2; 2].