59. Does knowing that x*y? tan xy 3 ху tell you anything about tan¬ xy lim (х, у) —- (0,0) ху Give reasons for your answer.
59. Does knowing that x*y? tan xy 3 ху tell you anything about tan¬ xy lim (х, у) —- (0,0) ху Give reasons for your answer.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Step 1
The limit of a function of two variables is L when approaches to and we denote it
by . It is defined as for any , there exists such that for all
if is in the open disc centred at with radius , then .
We have to find the limit of the function at the point when it is given that the inequality
holds.
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