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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
9 Nov 2021

Given information

Note that the given expression is , and .

Step-by-step explanation

Step 1.

Calculate .

 

Note that these two are the point of inflection.
Substitute the values in the equation.
The interval will be .
Hence,
Concave downward in the interval of .
Concave upward in the interval of .
These points are points of inflection
.

 

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