find the domain of the function \[f(x) = \sqrt{1 - \sqrt{2 - \sqrt{3 - x}}}.\]

i dont think thats correct cuz when you enter 4 as a value you get a complex number and you aren't supposed have them

If x = 2 , then f(x) = 0

If x = -1, then f(x) = 1

The domain is [ -1 , 2 ]