Precalculus (6th Edition) Blitzer

by Blitzer, Robert F.

Published by Pearson

ISBN 10: 0-13446-914-3

ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.8 - Applications of Trigonometric Functions - Exercise Set - Page 640: 80

Answer

$\{ 1\pm\sqrt 5 \}$

Work Step by Step

Step 1. Using the square root properties, we have $x-1=\pm\sqrt 5$ and $x=1\pm\sqrt 5$ Step 2. The solution set is $\{ 1\pm\sqrt 5 \}$

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