Hello

I'd like some help on derive a function and simplifying the expression as much as possible.

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Here's my idea on how it ends up...

first, we can work a little bit with the function:

Ok this looks a bit easier, we'll get the derivate of an product.

The general derivate of ln:

and simply ends up as

Let's move on...

Let's derivate

I think it looks correct, can it be simplified?

Anything further?

Thanks for all replies.