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# Implicit partial derivatives - am I doing it right? watch

1. Here's the question:

Find for , assuming that there are no implicit functions of the given variables.

Using the quotient rule:

(I know the above working is a bit confusing because I used the u in the quotient rule as well as it being a variable but I hope it's clear what I did.)

I just wanted to see if this is right to make sure I actually know what I'm doing... thanks!
2. Your working seems OK to me. Have you covered the multivariable chain rule yet? That is . Questions on this topic involving the chain rule are more common (and make things a little more complicated), so I'd practice those too.
3. (Original post by A Slice of Pi)
Your working seems OK to me. Have you covered the multivariable chain rule yet? Questions involving chain rule are more common, so I'd practice those too.
http://www.thestudentroom.co.uk/show....php?t=3683635
4. That looks an interesting question. I'll be sure to have a go at that later...
5. (Original post by A Slice of Pi)
That looks an interesting question. I'll be sure to have a go at that later...
https://www0.maths.ox.ac.uk/system/f...us_Sheet_3.pdf
6. can you please post 1 and 2 and feel free to post anything else ...
in fact give us the password!
7. (Original post by TeeEm)
can you please post 1 and 2 and feel free to post anything else ...
in fact give us the password!
They're all here https://www0.maths.ox.ac.uk/courses/material , you don't need a password or anything to access it
8. (Original post by Gome44)
They're all here https://www0.maths.ox.ac.uk/courses/material , you don't need a password or anything to access it
amazing!!!
undergrad material is usually hard to find
9. (Original post by TeeEm)
amazing!!!
undergrad material is usually hard to find
There are some cambridge sheets here as well http://www.damtp.cam.ac.uk/user/examples/, but they are only for certain modules
10. (Original post by Gome44)
There are some cambridge sheets here as well http://www.damtp.cam.ac.uk/user/examples/, but they are only for certain modules
thanks

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