Answer:When n is an odd number, ![\sqrt[n]{a}](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Ba%7D)
is a real number for all values of a. Then, the domain is the real domain.
Assuming it's for a polynomial function, this video explains a lot https://www.youtube.com/watch?v=OrLz7yide2g hope this helps:)
1 is wrong there are two numbers greater than 4 but less than or equal to 6.
the first one was correct
