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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
18 Oct 2021

Given information

Given:-  

To show :- Show that the given equation is vertical tangent line at

Step-by-step explanation

Step 1.

The work in part (a) with the one-sided limits shows that when  , the slope of the tangent line is negative and the tangent line becomes steeper with negative slope as we get closer to  . Similarly, when  , the slope of the tangent line is positive and becomes the tangent line becomes steeper with positive slope the close we get to  . Thus, there is a vertical tangent line at  .

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