Answer
$||v||^2=26$
Work Step by Step
$||v||^2=(\sqrt {v·v})^2=(\sqrt {⟨5,1⟩⋅⟨5,1⟩})^2=(\sqrt {5^2+1^2})^2=(\sqrt {26})^2=26$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 8 - Review Exercises - Page 617: 76
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