# Calc

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Differentiate f and find its domain. Show step by step please!

f(x)=lnlnln(x)

Thanks!

• Calc -

no big deal

f = ln (ln ln x)
f' = 1/(ln ln x) * (1/x * 1/ln x)
= 1/(x(lnx)(ln lnx))

• Calc -

what is the domain?

• Calc -

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.

• Calc -

what is x is negative or zero Tim ?

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