Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 1 - Precalculus Review - 1.1 Real Numbers, Functions, and Graphs - Preliminary Questions: 4

Answer

No.

Work Step by Step

If $a$ and $b$ are both nonpositive or both nonnegative: $|a+b|=|a|+|b|$. Otherwise: $|a+b|\lt|a|+|b|$. There is no other possibility.
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