Step-by-step explanation:

To find the derivative, notice we have a function 1/x inside of another function, ln(x)
We use what we call the chain rule,
It states that
derivative of a '

Here f is ln(x)
f is 1/x
So first, we know that

so

We know that

So we have

Answer:
It's option D. 8(8x + 9y).
Answer:
Step-by-step explanation:
C
Answer: =1
Step-by-step explanation:







Hello,
Please, see the detailed solution in the attached file.
Thanks.