Multivariable Calculus of form f(x, y)

Asked Feb 16 '15 at 13:09

Active Feb 16 '15 at 13:41

Viewed 57 times

I am trying to answer question 4ii) enter image description here

This is my working out: enter image description here

Checking the answers in the back of the book, I am incorrect. What am I doing wrong? I have only just started reading about Multi-Variable Calculus about an hour ago, teaching it to myself, so please don't be too harsh if I'm being a complete idiot.

Thanks!

edited Feb 16 '15 at 13:41

asked Feb 16 '15 at 13:09

talfred

Here's a MathJax tutorial :) – Shaun Feb 16 '15 at 13:12
1

@Shaun thanks for the link, I'll use that in future. Is my writing that illegible though? – talfred Feb 16 '15 at 13:18
You're welcome. I can read your writing at least. Don't worry about it. You're new here :) – Shaun Feb 16 '15 at 13:21
@Shaun given you can read my writing... any chance you could help me? ;) – talfred Feb 16 '15 at 13:24
Can you expand your acronyms? Not everyone is in the same locality as you, – Matthew Leingang Feb 16 '15 at 13:26
@MatthewLeingang acronyms such as...? – talfred Feb 16 '15 at 13:28
In particular, MEI and FP3. – Matthew Leingang Feb 16 '15 at 13:29
@MatthewLeingang "MEI" is the exam board I am on in England, and "FP3" is the module that this question is from – talfred Feb 16 '15 at 13:31
I'd love to, @talfred, but I have my own mathematics problems to solve. They have deadlines. Good luck :) – Shaun Feb 16 '15 at 13:32
I know that. I'm asking you to edit your question to make it more accessible. After all, you want to remove as many barriers as you can between the problem and the people who could potentially help you solve it. – Matthew Leingang Feb 16 '15 at 13:40
@MatthewLeingang I have edited the title. – talfred Feb 16 '15 at 13:42

Multivariable Calculus of form f(x, y)

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