Question

The domain of the function $f(x)=\sqrt{{\log }_{16}{x}^2}$ is

• A. x = 0
• B. $|x|\ge 4$
• C. $|x|\ge 1$
• D. $|x|\ge 2$

Answer 1

Answer: (C)

$x\ne 0$ and $x^2\ge 1\Rightarrow |x|\ge 1$