Calculus: Early Transcendentals (2nd Edition)

Published by Pearson
ISBN 10: 0321947347
ISBN 13: 978-0-32194-734-5

Chapter 4 - Applications of the Derivative - 4.7 L'Hopital's Rule - 4.7 Exercises: 2

Answer

Because they transform indeterminate forms into determinate forms that can be evaluated.

Work Step by Step

The method of straightaway substitution won't work if we get an indeterminate form. Then we use some special method to transform the limit such that if we substitute after this transformation we get a determinate form which can be evaluated.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.