Hello,

I have a problem with derivative.Sorry,my topic is abit off :P,not use to doing this stuff at the computer.

$\displaystyle y = ln^2ln^3 ln^4 x$

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The book says that the right answer is $\displaystyle y'=\frac{24ln ln^3 ln^4 x}{x(ln ln^4 x)lnx}$

Thank you