Find: Thanks in advance! I got this answer: and i just want to make sure I did it right...
Last edited by mr fantastic; Apr 23rd 2009 at 06:19 PM. Reason: Merged posts
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Edit: Oh you just had to get banned. =p Easier way to do it when you've got it in that form: -(d/dx)/(d/dy) d/dx = 2x - y d/dy = -x - 8y
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