Unformatted text preview: d) lim ( x,y ) (0 , 0) | x |-| y | | x | + | y | 3. Let f ( x, y ) = p x 2-y 2 a) Sketch the domain of f . b) Explain why lim ( x,y ) (0 , 0) f ( x, y ) does not exist. c) How could we modify the denition of a limit so that the limit in b) exists? What would be the value of the limit? 1...
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- Spring '08
- Math, lim, x,y, Sketch level curves