Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 8 - Application of Trigonometry - 8.4 Algebraically Defined Vectors and the Dot Product - 8.4 Exercises - Page 789: 4


$\dfrac {\sqrt {2}}{2}$

Work Step by Step

$a=1\times \sin 45=\sin 45=\dfrac {\sqrt {2}}{2}$
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