8. Let f(x, y) be the function x3 + y3 xy? Show that the limit lim(9)→(0,0) f (x, y) does not exist by setting y = mx and f(x, y) : showing that the limit depends on m.

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter5: Graphs And The Derivative
Section5.3: Higher Derivatives, Concavity, And The Second Derivative Test
Problem 61E
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8. Let f(x, y) be the function
f (x, y)
x3 + y3
xy?
Show that the limit lim(y)–+(0,0) f(x, y) does not exist by setting y = mx and
showing that the limit depends on m.
Transcribed Image Text:8. Let f(x, y) be the function f (x, y) x3 + y3 xy? Show that the limit lim(y)–+(0,0) f(x, y) does not exist by setting y = mx and showing that the limit depends on m.
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