Answer
$\textbf{u}\cdot\textbf{v} = 0$
Work Step by Step
$\textbf{u}\cdot\textbf{v} = u_1v_1 + u_2v_2$, where $\textbf{u} = $ and $\textbf{v} = $.
$\textbf{u}\cdot\textbf{v} = (1)(1) + (1)(-1) = 1 - 1 = 0$
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 11 - Vectors and Vector-Valued Functions - 11.3 Dot Products - 11.3 Exercises - Page 788: 15
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