Answer
$0$
Work Step by Step
$u=[3, -2]$
$v=[4, 6]$
$u.v=(3*4)+(-2*6)=(12-12)=0$
Linear Algebra: A Modern Introduction
by Poole, David
Published by
Cengage Learning
ISBN 10:
1285463242
ISBN 13:
978-1-28546-324-7
Chapter 1 - Vectors - 1.2 Length and Angle: The Dot Product - Exercises 1.2 - Page 290: 2
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