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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
19 Nov 2021

Given information

1. The profit   is a maximum. 

2.   is the cost function

3.  is the demand function

Step-by-step explanation

Step 1.

We have

   

Therefore

 

We can easily see that 

wwhich is always negative for  

 

   

 

 

 

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