Calc
posted by JuYoung .
Differentiate f and find its domain. Show step by step please!
f(x)=lnlnln(x)
Thanks!

no big deal
f = ln (ln ln x)
f' = 1/(ln ln x) * (1/x * 1/ln x)
= 1/(x(lnx)(ln lnx)) 
what is the domain?

I was trying to solve the same question and couldn't find the domain. if someone can help me with it, I will be thankful.

what is x is negative or zero Tim ?
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