For the first, use the product rule:
First times derivative of second plus second times derivative of first.
I'll let you tidy it up a bit.
Hello, fair_lady0072002!
Identify any general rules of calculus that you use
We have: . . . . product rule
. . . . . . . . . . . chain rule
Simplify: .
. . . . . . . . . . . . . . reciprocals
Therefore: .
This one is truly messy!
We have: .
Then: . . . . quotient rule
. . . chain rule
Now we simplify . . . (do we hafta?)
We have: .
Multiply top and bottom by
Therefore: .
[Disclaimer: not responsible for egregious errors.]