Question

find domain f(x) = √x² ​

Answer 1

Answer:

The domain of the function is $(-\infty,\infty)$.

Step-by-step explanation:

The domain of a function is the points at which the function is defined.

Given the function

$f(x)=\sqrt{x^2}$

The square root function is defined only when the number under the square root is non-negative. That is,

$x^2\geq0$

We also know that square of any number is non-negative. So the function is defined for all real numbers. Hence the domain is,

$\mathbb{R}$, which can be written as $(-\infty,\infty)$