Derivative of $e^{e^{e^x}}$ $$\Large e^{e^{e^x}}$$ Derivative of this function needs to be found out but I am not getting any substitution. Any help/hint would do . Thanks!

Step 1: Think of the function as $e^{f(x)}$, where $f(x)=e^{e^x}$.
Step 2: Apply the chain rule.  At some point you will need $f'(x)$, which will need the chain rule again.
