How do I show that the limit as (x,y) -> (0,0) does not exist for (x^2 - 4y^2)/(y^2)?

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.2: Polynomial Functions
Problem 96E: What is the purpose of the Intermediate Value Theorem?
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How do I show that the limit as (x,y) -> (0,0) does not exist for (x^2 - 4y^2)/(y^2)?

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