Answer
-49/16
The sum of the area of the 2 rectangles above the x-axis minus the sum of the 4 rectangles below the x-axis is the Riemann sum
Graph shown below
Work Step by Step
0.5((-63/16)+(-55/16)+(-39/16)+(-15/16)+(17/16)+(57/16))
=-49/16
Calculus: Early Transcendentals 9th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1337613924
ISBN 13:
978-1-33761-392-7
Chapter 5 - Section 5.2 - The Definite Integral - 5.2 Exercises - Page 394: 3
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