Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 6 - Trigonometric Functions - 6.3 Properties of the Trigonometric Functions - 6.3 Assess Your Understanding - Page 394: 4

Answer

True.

Work Step by Step

$(x+1)^2-1=x^2+2x+1-1=x^2+2x$, hence it is true.
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