The Student Room Group

Differentiation help

Hi everyone!

So I have tried answering this question shown below

Screenshot 2020-02-12 at 19.32.10.png

This is what I have done for each

IMG_3844.jpg

IMG_3846.jpg

IMG_3848.jpg

IMG_3849.jpg

I'm a bit skeptical that I have done part a) incorrectly? I had made use of implicit differentiation where I differentiate w.r.t. x on both sides. Where I had also made use of product rule on the LHS and chain rule on the RHS

Any help would be really appreciated! Thanks
Reply 2


Ok thanks, I just used wolframalpha to see if my answers to part b) match up and it seems to check up too :smile:

Thanks again :smile:
Reply 3
Original post by Yatayyat
Ok thanks, I just used wolframalpha to see if my answers to part b) match up and it seems to check up too :smile:

Thanks again :smile:


I thought about doing it, but hoped that you would :-)

Quick Reply

Latest