Question

How do you find the domain of f(x)=lnlnlnx

Answer 1

We have to find the domain of the function:
f ( x ) = ln ln ln x
x > 0
ln x > 0
x > 1
and finally: ln ( ln x ) > 0
ln x > 1
x > e
Answer: 
Domain is: x ∈ ( e , + ∞ ).