Thomas' Calculus 13th Edition

Published by Pearson
ISBN 10: 0-32187-896-5
ISBN 13: 978-0-32187-896-0

Chapter 15: Multiple Integrals - Section 15.1 - Double and Iterated Integrals over Rectangles - Exercises 15.1 - Page 875: 23



Work Step by Step

$\int^{2}_{1}\int^{2}_{1}\frac{1}{xy}dy$ dx =$\int^{2}_{1}\frac{1}{x}(ln2 -ln 1)dx$ =$(ln2)\int^{2}_{1}\frac{1}{x}dx$ =$(ln2)^2$
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