Posted by **JuYoung** on Sunday, March 16, 2014 at 3:57pm.

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

f(x)=lnlnln(x)

Thanks!

- Calc -
**Steve**, Sunday, March 16, 2014 at 4:40pm
no big deal

f = ln (ln ln x)

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

= 1/(x(lnx)(ln lnx))

- Calc -
**Tim**, Sunday, March 16, 2014 at 5:03pm
what is the domain?

- Calc -
**Tim**, Sunday, March 16, 2014 at 5:45pm
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 -
**Damon**, Sunday, March 16, 2014 at 6:24pm
what is x is negative or zero Tim ?

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