lim x o \x +c (x – ' 4

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 78E
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Question

Find the value of the positive constant c such that....

lim
x o \x +c
(x – '
4
Transcribed Image Text:lim x o \x +c (x – ' 4
Expert Solution
Step 1

Given- limxx-cx+cx=14

To find- The value of c.

Concept Used- If any limit of the function fxgx in the form of 1, so the limit can be written as, 

=elimxfx-1·gx

Step 2

Explanation- Rewrite the given expression,

      limxx-cx+cx=14

As the above limit is in the form of 1, so it can be written as follows,

   elimxx-cx+c-1·x=14elimxx-c-x-cx+c·x=14      elimx-2cx+c·x=14        elimx-2c1+cx=14             e-2c      =14

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