Precalculus (10th Edition)

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

Chapter 10 - Analytic Geometry - 10.6 Polar Equations of Conics - 10.6 Assess Your Understanding - Page 685: 50



Work Step by Step

The magnitude $||v||$ of a vector $v=ai+bj$ is given by the formula: $||v||=\sqrt{a^2+b^2}$ Hence, using the formula gives $||v||=\sqrt{10^2+(-24)^2}\\ ||v||=\sqrt{100+576}\\ ||v||=\sqrt{676}\\ ||v||=26$
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