SubArea: Logarithmic functionsLevel: AProject ID: 2000000605Accepted: 0Clonable: 0Easy: 1Which of the following sets is the domain of the function \(f: y=\log(x^2+9)\)?\( \mathbb{R}\)\( (-\infty;-3) \cup (3;+\infty)\)\( (-3;3)\)\( \mathbb{R} \setminus \{-3;3\}\)