Show that a function f : R2-R defined by f(x,y)= x3- y3 / x2+ y2, if (x,y) is not equal to (0,0) and f(x,y)= 0, if x=y=0 is continuous at (0,0).
Show that a function f : R2-R defined by f(x,y)= x3- y3 / x2+ y2, if (x,y) is not equal to (0,0) and f(x,y)= 0, if x=y=0 is continuous at (0,0).
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.
Chapter9: Multivariable Calculus
Section9.3: Maxima And Minima
Problem 27E
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Show that a function f : R2-R defined by
f(x,y)= x3- y3 / x2+ y2, if (x,y) is not equal to (0,0)
and f(x,y)= 0, if x=y=0
is continuous at (0,0).
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