Answer
$4$
Work Step by Step
Step 1. Translate the given condition into an equation; we have $\int_a^bf(x)dx=4$
Step 2. The area between the two curves is given by $A=\int_a^b(2f(x)-f(x))dx=\int_a^bf(x)dx=4$
Thomas' Calculus 13th Edition
by Thomas Jr., George B.
Published by
Pearson
ISBN 10:
0-32187-896-5
ISBN 13:
978-0-32187-896-0
Chapter 5: Integrals - Section 5.5 - Indefinite Integrals and the Substitution Method - Exercises 5.5 - Page 305: 80
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