Answer:
The domain is the set of all real numbers.
Explanation:
We know:
The root with an odd degree is exist for any real number.
The root with an even degree is exist for any non-negative real number.
The domain:
![\sqrt[n]{a}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/m5j5nijjmp7ajlqw2bidpiv5jdy1l3j3l3.png)
is all real number if n is odd number.
is alle non-negative real number if n is even number.