Does the limit of a function depend on how the function is defined at the point being approached?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.7: Operations On Functions
Problem 42E
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Does the limit of a function depend on how the function is defined at the point being approached?

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Step 1

We know that,

For the limit of a function to exist at a point, the functional values must approach a single real-number value at that point.

if the functional values do not approach a single value then, the limit does not exist.

 

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