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