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10a
Problem

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Textbook Expert
Textbook ExpertVerified Tutor
9 Dec 2021

Given information

The function is  

Step-by-step explanation

Step 1.

Given function

 

Take  ,
where   is your max endpoint and is your min endpoint, and divide by the number of rectangles to get the width of each rectangle.
 
Since all of the rectangles are the same width we can pull the 3 out of the equation. Then take the sum of all the   values where   is all the left endpoints.
 
 Now we take the sum of all the values where is all the right endpoints.
   

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