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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
18 Nov 2021

Given information

Given function,

  

Interval-       

Step-by-step explanation

Step 1.

Taking three approximating rectangles i.e,   

 

    

                    
               

Using left endpoints 

    

   

Substituting the values, we get

   

 

 

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