Answer
$u=\tan{x}$
$du=\sec^2{x}$
Work Step by Step
$\int \tan^2{x}\sec^2{x}dx$
Let $u=\tan{x}$ then $du=\sec^2{x}$
Calculus 10th Edition
by Larson, Ron; Edwards, Bruce H.
Published by
Brooks Cole
ISBN 10:
1-28505-709-0
ISBN 13:
978-1-28505-709-5
Chapter 4 - Integration - 4.5 Exercises - Page 301: 3
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