The domain of the function $f(x)= log (x^2-4)$ is :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $(-∞, -2) ∪ (2, ∞)$
$f(x)= \log (x^2-4)$
$(x^2-4)>0⇒(x-2)(x+2)>0$
using wavy curve method
$x∈(-∞, -2) ∪ (2, ∞)$
The domain of the function $f(x)= log (x^2-4)$ is :
Correct answer: option 2
The correct answer is Option (2) → $(-∞, -2) ∪ (2, ∞)$
$f(x)= \log (x^2-4)$
$(x^2-4)>0⇒(x-2)(x+2)>0$
using wavy curve method
$x∈(-∞, -2) ∪ (2, ∞)$