Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 6 - Section 6.2 - The Law of Cosines - Exercise Set - Page 732: 53

Answer

See explanations.

Work Step by Step

The Law of Cosines states that, in a triangle, the square of one side equals to the sum of the squares of the other two sides minus two times the product of the other two sides and the cosine of the angle facing the first side.
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