Answer
-$1$
Work Step by Step
$\int _{-1}^{2}[f(x)+2g(x)]$ $dx$ = $\int _{-1}^{2}f(x)$ $dx$ + $\int _{-1}^{2}2g(x)$ $dx$
= $5$ + $2(-3)$
= $5$ - $6$
= -$1$
Calculus, 10th Edition (Anton)
by Anton, Howard
Published by
Wiley
ISBN 10:
0-47064-772-8
ISBN 13:
978-0-47064-772-1
Chapter 5 - Applications Of The Definite Integral In Geometry, Science, And Engineering - 5.5 Area Of A Surface Of Revolution - Exercises Set 5.5 - Page 381: 21
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